Write a action-packed, interesting, dialogue-filled short story in the form of a crossover fanfic between High School DxD, the Fate/Stay Night Franchise, Bakemonogatari, Negima! Kodomo no Jikan, and the Tsukihime franchise, in which the brown-haired, amber-eyed Hyoudou Issei, the protagonist of High School DxD takes the place of the black-haired, blue-eyed Tōno [Nanaya] Shiki, the protagonist of the Tsukihime franchise, with Issei having Shiki's Mystic Eyes of Death Perception and [Shiki's] Nanaya skills, abilities and powers in addition to his [Issei's] own abilities from DxD, with the Hyodous taking the role of Shiki's unofficial foster family and adoptive relatives, the Arimas. The blonde-haired, amber-eyed kitsune [fox |kitsune|] hime [princess |hime|] Kunou from DxD takes the place of the Arimas' daughter and Shiki's adoptive younger female cousin, the brown-haired, green-eyed, honest and steadfast martial arts prodigy Arima Miyako along with Bakemongatari's Nadeko Sengoku, [Kunou] having Miyako's martial arts skills and [Kunou] having feelings for him [Issei], [Kunou] not knowing the truth about her [Kunou's] beloved onii-chan [big brother |onii-chan|] Issei [that he |Issei| was |Issei| adopted]. Kunou also takes the place of Kodomo no Jikan's Usa Mimi, [Kunou] having Mimi's intelligence but [Kunou] also having her [Mimi's] naivety and [Mimi's] ignorance on sexual matters the name [Usa Mimi] being an alias she [Kunou] used to have a normal life at elementary school, although she [Kunou] also has Mimi's large chest which [Kunou's large chest] she [Kunou] hides with a sarashi, it [Kunou's large chest] being a source of embarrassment for her [Kunou] in elementary school, to the amusement of her [Kunou's] friend, the light brown-haired, brown-eyed, mischievous and troublesome Kokonoe Rin from Kodomo no Jikan, who [Rin] is in fact the blonde-haired, blue-eyed, short and petite but also rather buxom arrogant and spoiled but kind and caring Ravel Phenix from DxD, which she [Kunou] is [Kunou] clueless [Kunou] about [Rin being Ravel]. 

Issei also takes the place of Bakemonogatari's protagonist, the black-haired, grey eyed Araragi Koyumi, with Bakemonogatari's blonde haired, amber-eyed female vampire lord Kiss-Shot Acerola-Orion Heart-Under-Blade ["Oshino Shinobu"], Tsukihime's vampire princess Arcueid Brunestud, Fate/Stay Night's Artoria Pendragon and Negima's Evangeline McDowell all being the same person, with Evangeline being Arcuied's reincarnation and Artoria Pendragon being a name she [Evangeline] was later known as, but she [Evangeline] doesn't like either name [Arcuied or Artoria] and [Evangeline] prefers to be called Shinobu by him [Issei], [Shinobu] being his [Issei's] vampire familiar and his [Issei's] former master after she [Shinobu] transformed him [Issei] into a vampire lord, like her [Shinobu's] canon counterpart, although he [Issei] hides this from both his [Issei's] family and his schoolmates. This backfires on him [Issei] when during a cultural festival at Kuoh Academy, Kunou sees him [Issei] while he [Issei] is heading out to the Occult Research Club's booth and [Kunou] calls out to him [Issei], which [Kunou calling out to Issei] surprises him [Issei] just enough for Rin to see her [Rin's] best friend [Kunou] running towards her [Kunou's] beloved onii-chan [Issei] and [Rin] feeling mischievous, [Rin] decides that she [Rin] wants a piece of the action too, just as Shinobu, [Shinobu] havung left her [Shinobu's] master's [Issei's] shadow for a few human snacks and also to get a few criminals for her [Shinobu] to feed on for her [Shinobu's] daily sustenance, [Shinobu] quickly returns to his [Issei's] side in her [Shinobu's] child form, [Shinobu] clinging on to his [Issei's] arm as her [Shinobu's] large chest presses against his [Issei's] strong arm. When Issei's master, the scarlet-haired, blue-eyed buxom devil princess Rias Gremory and the rest of her [Rias'] peerage arrive at the scence, they see Shinobu, Rin/Ravel and Kunou cuddling up to Issei as Kunou's large chest, [Kunou's large chest] unbound by its [Kunou's large chest's] usual wrappings, presses against Issei's chest and Shinobu's only slightly smaller chest pressing up against his [Issei's] arm, Rias gasping in shock as she [Rias] realizes who one [Shinobu] of the strange girls [Shinobu, Rin and Kunou] cuddling with her [Rias'] beloved pawn [Issei] is [Kiss-Shot Acerola-Orion Heart-Under-Blade].