Write an interesting, family, family drama, dialogue-filled, exposition-filled, urban fantasy, dark fantasy, High fantasy, Japanese mythology style anime, manga, JRPG, video game, eroge and light novel style, Japanese fantasy anime, manga, light novel and visual novel style narrative in the form of a multi-crossover fanfic where the main male protagonist of High School DxD, the tall, slender, lean and somewhat muscular, openly perverted and obsessed with large breasts along with being a real life harem king, but in reality kind and caring ordinary Japanese boy who in fact has the Sacred Gear given to him by God containing the soul of the Welsh dragon Ddraig inside of it, taking the form of a gauntlet resembling a dragon's claw with a large emerald in the middle, Boosted Gear from High School DxD, unbeknownst to his classmates and teachers, Hyōdo Issei from High School DxD, [Issei] is [Issei] forced to reveal to not only the other students of his second year high school class at the school Issei currently attends, the kindergarten to college all age exclusive private school for the children of Japan’s nobility, rich politicians, Yakuza heads rich scientists and industrial titans, along with the few commoners lucky to have their kids go there, located near Issei's hometown of the small city located near Kyoto, Kuoh from High School DxD, Kuoh Academy from High School DxD, but to the entire school that he [Issei] isn't a only child, but [Issei] being [Issei] the oldest child [Issei] of [Issei's parents] the brown-haired, amber-eyed, tall and slender, jovial and caring with a love of fishing but also immensely perverted and lecherous ordinary Japanese salaryman Hyōdō Gorou from High School DxD and his [Gorou's] wife and thus Issei's mother, the brown-haired, brown eyed, tall and slender, kind and caring, soft-spoken and loving ordinary Japanese woman, traditional Japanese beauty who is in fact a high-ranking, well-paid, famous and feared corporate executive and high-roller, Hyōdo Miki from High School DxD, [all of Kuoh Academy finding out that Issei has younger siblings] when one of Issei's younger sisters in this story, the very soft-looking young Japanese noble girl, Japanese noble heiress and Yamato Nadeshiko [ a flower of the Japanese nation, that is, a standard of female beauty that is uniquely Japanese |Yamato nadeshiko|, more specifically a traditional Nihon-jin |Japanese (Nihon-jin)| beauty |Yamato Nadeshiko|, more specifically a demure young woman and, in a contemporary context, nostalgically of women with good traits which are perceived as being increasingly rare, having inner strength, who exhibits delicacy and deference, as well as quiet determination, being dignified and modest, having delicacy and fragility, as well as elegance and sturdiness, being internally strong although she is outwardly submissive and obedient, having a nurturing yet uncompromising personality due to her mature character, having traits of maturity, modesty, gentleness, grace, uncompromising determination, while also being nurturing, whose appeal lies in her sexual maturity and traditional Japanese virtues of a caring yet subservient nature] in the making with butt-length black hair that has slight drills at the end and olive eyes who usually wears two small pink hair clips on the sides of her fringes, as well as a big bow around her hair and is well endowed for her age, being a extremely kind, sweet and gentle girl who is shown to care about the welfare of people around her, but also can also become fiercely possessive when it comes on to those she loves, Tsuruma Konoe from Kono Naka ni Hitori, Imouto ga Iru!, [Konoe] along with another of Issei's younger sisters in this story who is a little bit older than Konoe but of course younger than Issei in this story, the petite but also buxom young Japanese girl with brown hair with long bangs and a fringe and also is usually tied with pig tails held by orange bows with light orange pom-pom balls hanging off them, having a childish look to her, and it is evenly matched by her childish personality, being lousy, but energetic, and moody, Kannagi Miyabi from Kono Naka ni Hitori, Imouto ga Iru!, [Konoe and Miyabi] pay Issei a visit from their [Konoe's and Miyabi's] shared middle school when he [Issei] is [Issei] talking animatedly with his [Issei's] childhood friends turned school friends after they all united in high school: the brown-haired, brown-eyed, glasses-wearing, intellectually gifted and academically talented but extremely lecherous and perverted anime, manga, visual and light novel, J-RPG and Japanese video game geek infamous for using his glasses to scan which ever unfortunate female he sees to get her "three sizes" [a common method of specifying clothing sizes which match the three inflection points of the female body shape, with these three sizes are the circumferences of the bust, waist and hips; usually rendered as xx–yy–zz in inches, or centimeters along with being used mostly in fashion, and almost exclusively in reference to women,[1] who, compared to men, are more likely to have a narrow waist relative to their hips] Motohama [High School DxD] and the bald, brown-eyed, tall and muscular perverted track star and all-around star athlete with an immense love for extremely lecherous and perverted anime, manga, visual and light novels, J-RPGs and Japanese video games Matsuda [High School DxD], who [Motohama and Matsuda] are [Motohama and Matsuda] known as Kuoh Academy's Perverted Duo [Matsuda and Motohama in this story while |Matsuda and Motohama in this story| at Kuoh Academy], [Konoe and Miyabi both visiting Issei when he is chatting with Matsuda and Motohama in his second year high school class] causing heads to turn, mouths to drop open, eyes to open wide and smartphones to be pulled out in order to take videos and photos to be uploaded to not only Twitter, Instagram, Snapchat and TikTok, but the freeware app and service for instant messaging and social networking, operated by the Japanese company LY Corporation, co-owned by SoftBank Group, which was launched in Japan in June 2011 by NHN Japan, a subsidiary of Naver, being a super-app providing services including a digital wallet (Line Pay), news stream (Line Today), video on demand (Line TV) and digital comic distribution (Line Manga and Line Webtoon), Line all across the classroom, as Konoe looks like every inch the young Ojō-sama [ a formal Japanese word for literally "young lady",  wealthy, high-class female characters, with the point being that is that while they are often rich, and occasionally even an actual Blue Blood, the key point is that other people treat them like royalty, whether or not they actually are along with being so heavily idolized that a fanclub springs around them, elevating them to a status far above that of those around her, while leveling violent reprisals against any who would treat them as  commoners, they make the rules because they have money] she [Konoe] is, with Miyabi resembling a sukeban [delinquent girl |sukeban|, a semi-paramilitary female delinquent |a sukeban| in |which East Asian country a  sukeban is (a sukeban) primarily located (a  sukeban) in| Nihon/Nippon/Yamato] clad in the Japanese fashion subculture for women whose meaning Japanese transliteration of the English slang word gal, which was considered to be nonconformist and a rebelling against Japanese social and aesthetic standards[5] during a time when women were expected to be housewives and fit Asian beauty standards of pale skin and dark hair, whose wearers are known for partying and clubbing, being rather provocative, being flirtatious, and unwinding and having fun, characterized by a face with matte foundation, silver or golden eye shadow, dark lash line with false eyelashes on both top and bottom lash line, pale or cool colored lips, colored contacts and tanned skin as it is considered a must in some substyles, whose fashion also varies by substyle and retail store; this choice of brands can denote which substyle one participates in, Japanese street fashion brands or western fast fashion brands with general  aesthetics indicated one's substyle depending on their appearance in an outfit, [the fashion style] known as gyaru [gal], [Konoe looking like a Ojō-sama and Miyabi looking like a sukeban clad in gyaru style] as they [Konoe and Miyabi] approach him [Issei], thankfully Issei manages to cover up the lewd talk and [Issei] thank them [Konoe and Miyabi] for coming to support him [Issei] just as the black-purple haired, purple-blue eyed, tall, slender and petite, but also curvy and buxom, highly strict and serious but also kind, generous, and compassionate with an emotional, delicate side as well, intellectually gifted, academically talented, water manipulation magic having young devil princess and current heiress to the Sitri clan of devil nobles [High School DxD], that [the Sitri clan] is one of the three Great Pillars [High School DxD] of the Underworld living in the human world under the alias of Shitori Sōna, Sitri Sōna [High School DxD], who [Sōna] is [who Sōna is] the current reincarnation [Sōna] of [whose Sōna’s past life was] the having little-to-no emotions, to the point of being viewed as apathetic Dragon Goddess who represents Infinity, Chaos, and Nothingness, short, petite but also secretly buxom, black-haired, gray-eyed, elf-eared, young girl Ophis [High School DxD], who [Sōna] also has a crush on Issei in this story as well, despite her [Sōna in this story] being [what Sōna in this story is] the Seito Kaichou [Student Council President |Seito Kaichou|] of [the school Sōna in this story is the Seito Kaichou |Sōna in this story| of] Kuoh, [Sōna] emerges into Issei's second year high school classroom, [Sōna] having followed both Konoe and Miyabi from Kuoh's middle school division. The current prinsessa [princess |prinsessa|] of the Swedish-Russian noble house and banking dynasty which is actually a high ranking devil clan lof the  Kungahuset Gremory [Royal House of Gremory |Kungahuset Gremory|] which [the Kungahuset Gremory] is one [the Kungahuset Gremory] of [the group that the Kungahuset Gremory belongs |the Kungahuset Gremory| to] Underjordens tre stora pelare [the Underworld’s Three Great Pillars |Underjordens tre stora pelare|] the seductive, alluring, impatient, competitive and selfish and sultry but also kind, compassionate, determined and loving, tall, slender, curvy and buxom, scarlet-haired, blue-eyed devil princess Rias Gremory from [the media franchise Rias is |Rias| from] High School DxD, [Rias] who [Rias] is [Rias] currently an English teacher at Majima, along with [Rias] simultaneously [Rias] being the current president [Rias] of Majima’s Okaruto Kenkyū-bu [Occult Research Club |Okaruto Kenkyū-bu|], an activity club [the Okaruto Kenkyū-bu] that [the Okaruto Kenkyū-bu] seemingly seems to research the occult and the supernatural but [the Okaruto Kenkyū-bu] is [the Okaruto Kenkyū-bu] in reality a front [the Okaruto Kenkyū-bu] for the Gremory Princess [Rias] and her [Rias’] Peerage, Himejima Akeno, a beautiful, elegant, gentle, calm, seductive and mature third-year female high school student [Akeno] with [what Akeno has] a [Akeno’s] voluptuous figure, [Akeno’s] very long black hair that [Akeno’s hair] is [what happens to Akeno’s hair] usually [what usually happens to Akeno’s hair] tied [Akeno’s hair] in [what Akeno’s hair is usually tied in] a very long ponytail, [Akeno’s hair] reaching all the way down to the floor with two strands [of Akeno’s hair] sticking out from the top [of Akeno’s head] and [the two strands of Akeno’s hair] sloping backward, with an orange ribbon keeping it [Akeno’s hair] in place. and [Akeno’s] violet eyes who [Akeno] is [what Akeno is] one [Akeno] of [which group Akeno belongs to] the school’s [Majima’s Gakuen Kōkō’s] Idai Nani Kouki Nani Josei [Great Noble Ladies |Idai Nani Kouki Nani Josei|] along with [who apart from Akeno is part of the Idai Nani Kouki Nani Josei] Rias, who [Akeno] is [what Akeno is] a Yamato Nadeshiko [traditional Nihon-jin |Japanese (Nihon-jin)| beauty |Yamato Nadeshiko|], [Akeno being |Akeno| a Yamato Nadeshiko] but [Akeno] is [what Akeno is] a sadomasochistic, sensual, seductive and highly perverted half-fallen angel, half miko, lightning magic using reincarnated devil [Akeno] who [Akeno] is [what Akeno is] Rias’ Queen [Akeno] unbeknownst to [who doesn’t know what Akeno really is] her [Akeno’s] adoring fans, fellow students and classmates at [the school Akeno attends] Majima’s Gakuen Kōkō, [Akeno] and Tōjō Koneko, a short, slender, petite middle school girl [Koneko] with [what Koneko has] white hair and amber eyes. and [what else Koneko has] a quiet, cold and serious personality, [Koneko] not speaking much and [Koneko] avoiding others’ company, [Koneko] being [what Koneko is] in fact [Koneko’s true self] a bakenekomimi [ pyrokinetic monster cat girl with the ability to manipulate qi and raise the dead |bakenekomimi|] yōkai [supernatural being/monster |yōkai|, a type of monster |yōkai| that |a yōkai| usually has the form of an animal, whether mammalian, reptilian or otherwise, and |a yōkai| can |what a yōkai can do| transform |a yōkai| into |what a yōkai can (a yōkai) usually transform into| a fully human, human with animalistic traits, or into a form akin to an anthropomorphic animal |a yōkai|, |a yōkai| usually |a yōkai| found |a yōkai| in |where a yōkai lives| Japan] [Koneko’s true self] who [Koneko’s true self as a bakenekomimi yōkai] is [Koneko’s true self as a bakenekomimi yōkai] Rias’ Rook, which [Koneko’s true self and connection to Rias] she [Koneko] keeps hidden [Koneko’s true self and connection to Rias] from her [Koneko’s] fellow students, classmates and teachers at [the school Koneko attends] Majima’s Gakuen Kōkō [Koneko] from [the media franchise Koneko is |Koneko| from High School DxD], [Koneko] along with the blonde-haired, blue-eyed, Russian, upbeat and caring, loyal, but secretly perverted ex-super solider project of the Russian Orthodox Church turned loyal devil servant, more specifically the Knight of Rias who has the Seikuriddo Gia with the ability to create numerous demon swords each with its own attributes and properties at his disposal, such as the Holy Eraser and Flame Delete, with the blades of these swords emerging any surface within Yuuto’s limited area, Sōdo Bāsu [Sword Birth |Sōdo Bāsu|], Kiba Yūto [High School DxD], and finally the androgynous young Slavic girl with platinum blond hair which is styled in short bob cut with several small fringes over her forehead, with  pointed ears and pinkish-violet eyes, who is a coward and a shut-in with a very shy personality, but showing extreme courage and loyalty, going so far as to be beaten to unconsciousness in defense of her weakened comrades when she forces down her timid nature and speaks as a woman, who also suffers from a severe case of gender dysphoria, thinking of herself as a male and refusing to accept she is female due to her tragic past, although when she does accept her true female self, she is very feminine, who is in fact a half Gremory devil, half-powerful creatures created from a human virgin drained of blood by a vampire of the opposite sex, only for said vampire to offer their own blood in return, which resurrects the drained person as a newborn among the undead and perpetuates a lineage, with enhanced speed, telekinesis, hypnosis, Agelessness from the point of infection and a need to sleep in a coffin or in contact with the soil of one’s birthplace, immense regenerative abilities, possessing Elongated fangs and red eyes, with a thirst for human blood, the ability to both mentally create and project third eye" capable of focusing images, allowing for superior targeting and the destruction of illusions, control of solid shadows, to the point it allows for extended flight, along with the ability to enter brutal berserk state, [the creatures] known as true vampires that exist in the Hellsing franchise, who is a part of Rias’ peerage, being Rias’ first Bishop to be specific, who also has the Seikuriddo Gia which lets her stop anything and anyone within her field of vision in time, which can also create and control a deep darkness that consumes anything, including the Dimension Lost’s mist, which allows her to also switch perception with others when she uses it letting her freeze Shalba and see whatever her victims sees, along with also allowing her to transform into a 5 meter tall monster resembling a dragon with multiple wings, a horn and red eyes, covering everything around her in darkness in this berserk form, devouring Georg’s Dimension Lost’s mist; creating multiple eyes able to stop time;[7] and inhibit regeneration provided by the Sephiroth Graal by tainting the wounds with its darkness, [this enhanced berserk form] known as Forbidden Invade Balor the Beast  from High School DxD,  [the Seikuriddo Gia in general] known as Balor the Beast from High School DxD, [Rias’ first Bishop who is half Gremory devil and half-true vampire and have the Seikuriddo Gia of Balor the Beast], Gasper Vladi from High School DxD, who [Gasper] is [Gasper] is [Gasper] virtually unknown at Majima with nobody at Majima knowing she [Gasper] is [Gasper] a Gremory devil-true vampire hybrid or a Seikuriddo Gia user, which [Majima’s Okaruto Kenkyū-bu] is [Majima’s Okaruto Kenkyū-bu] headquartered [Majima’s Okaruto Kenkyū-bu] in Majima’s old campus, now [Majima’s old campus] refurbished, expanded, rebuilt and renovated into the current clubhouse of Majima’s Okaruto Kenkyū-bu, even though most of the student population and teacher population at Majima obviously don’t know that she [Rias] is [Rias] a devil, or that Majima’s Okaruto Kenkyū-bu is [Majima’s Okaruto Kenkyū-bu] a front for her [Rias'] peerage [Akeno, Koneko, Kiba, and Gasper], who [Rias] is [Rias] Issei's master [Rias], [Rias in the present] watches in amusement, [Rias watching with amusement] along with Sōna’s older sister and Rias’ childhood friend who was the former Sitri heiress before Sōna and currently is one of the upper ranks in the Underworld’s society, [Sōna’s older sister] the beautiful young devil woman looking in her late teens with black hair, tied into twin tails and blue eyes, having a child-like body (albeit with large breasts) who ocassionally dresses in magical girl’s clothing when she feels like it, being cheerful, friendly and possesses a childlike personality despite being academically and intellectually gifted along with being good at magic, especially ice manipulation magic, Adding to her childlike personality is the fact that most of her lines end with a star and her intense fascination with magical girls, which she took to cosplaying as a magical girl as a hobby even audition in the human world, having a deep sister complex towards Sōna, which often gets her into embarrassing situations, but also being selfless and determined despite her openly childish personality, along with being well adept in using fire magic when she used a beginner spell called “Fire Shot”, but raised to the point this “beginner’s magic” can destroy entire meadows in an instant, being a highly skilled and talented diplomat in handling negotiations with other mythological factions and even humans, described as possessing an idol like charisma that contributed to her talent in diplomacy along with being a very powerful devil in general with immense magical power, Serafall Leviathan, formerly known as Serafall Sitri, from High School DxD, [ Serafall] who [ Serafall] like Rias, [ Serafall] is [ Serafall] also teaching at Majima as well, [ Serafall] teaching history at Majima under the disguise of a human college student, more specifically as the Japanese female college basketball superstar who is a Japanese noble heiress  and  Yamato Nadeshiko  with brown eyes and short dark bluish hair, having an athletic physique due to her practicising basketball, along with ample breasts, often wearing sleeveless clothing and shorts along with cycling shorts underneath her clothes, which she considers to be her underwear, having a boyish personality, being a lesbian, fujoshi, and masochist but also secretly bisexual, being quite sloppy when it comes to keeping her room clean and organized, having a level-headed personality during serious situations despite her commonly immature nature, Kanbaru Suruga from Bakemonogatari, with most of the students and teachers at Majima being unaware of the fact that Kanbaru is in fact a devil [Serafall], [Rias and Serafall as Kanbaru both watching in amusement in the present] as Konoe and Miyabi both get oohs and ahhs from Issei's classmates, even as the light brown-haired, green-eyed, glasses-wearing, perverted and somewhat mocking but intellectually and academically gifted, though she chooses not to show it, secretly magically talented Japanese noble heiress who is Sōna’s reincarned devil servant in this story, Kiryū Aika from High School DxD, [Aika] who [Aika] is [who Aika also is] one of Issei's, Matsuda's and Motohama's classmates [Aika] asks Konoe if she [Konoe] and Miyuki are [Konoe and Miyabi] really Issei's biological little sisters [Konoe and Miyabi] to which Konoe gives the obvious answer, yes.