Ren Yamashiro

**Ren Yamashiro** (山城 恋(やましろ れん), *Yamashiro Ren*) is the Chief of the Anti-Demon Corps' 10th Unit and a major supporting character of the *Mato Seihei no Slave* anime/manga series.

Revered by her allies as the apex of humanity, Ren not only commands the 10th Unit but also holds the position of Head Commander of the entire organization and is considered to be their strongest weapon.

## Appearance

Ren is a beautiful young woman with black hair that has a ribbon on the left side of her hair with square bangs hanging on the right side and violet eyes.

She is dressed in the usual Anti-Demon Corps uniform, shorts instead of a skirt, white gloves and a cloak, in addition to black pantyhose and high-heeled boots.

## Personality

Both Tenka and Kyouka have described Ren as a patriotic Demon Hunter, doing whatever it takes to defend her homeland ranging from eliminating both Aoba and all the other Humanoid Shuuki who reside in the Hidden Village and working closely with the Prime Minister of Japan to ensure peace.

As noted by Kyouka, Ren is an incredibly curious person. Once she takes an interest in someone or something, it is ill-omen which was noted when Yuuki first made contact with her for the first time. She would find excuses just to spend time with that thing, best seen with the head of the 3rd Unit who was reduced to become her plaything.

Due to her upbringing, Ren has a strong belief in proving herself superior to others, as well as doing whatever it takes to ensure that people fear her, relishing in the difference between hers and their strengths.

Despite her refined looks, Ren favored using brute force and fear, which seemed to have traumatized, Bell, a fellow Chief. Ren's level of brutality was proven when she continued pummeling Yuuki in Killer Fang after he started fighting against her, referring him as both a "Bad Dog" and "Beast". She continued using physical force, and almost killed him, after realizing that Yuuki could also regenerate in that Slave Form.

Despite her serious demeanor and logic, Ren can at times do reckless things as when Kyouka tried warning her about the dangers of the Killer Fang, instead leaving to test it out herself. However, she was irritated after realizing that some of the "rewards" can get more intimate than that, showing that she isn't used to being in such embarrassing situations due to her upbringing, then near the end of it, she was remarkably embarrassed and flustered after it was finished to the point of destroying a mountain out of frustration. She also gained a vindictive fixation on him, even purchasing a dog collar to put on him to give herself a better sense of control. Ren is also very stubborn, even though she can easily humiliate Yuuki by forcing him to be her dog, she still think it not enough and leaves.

She is also fond of animals, most notably dogs, which Ren stated Yuuki reminded her of, he, in turn, stated that she reminded him of his older sister in spite of them looking different from one another.

## Background

Though most of her past is unknown, Ren stated that she was fond of looking at maps from remote regions. She had an upbringing where she succeeded in anything and everything that she did, ranging from mock exams, sports competitions, student council.

Having eating a Peach from Mato, receiving powerful abilities, causing a previous female President to state that Ren was life's apex and earth's answer.

## Powers and Abilities

Ren was regarded as a genius from childhood who succeeded in everything that she did ranging from academics and sports without failing. Similar to all other woman before her, she gained a unique power after devouring one of the Peaches from Mato. After joining the Anti-Demon Corps, Ren has been described as being the apex of life, as well as Earth's answer by several people despite not using her full powers.

As Chief of the 10th Unit and Commander of the Anti-Demon Corps, she has supreme authoritative rule over the 10th Unit and all the other nine units, even among the Chiefs who leads them. Ren is also noted to be superior in strength among the other Chiefs, being able to overpower Yuuki in his Killer Fang without getting serious.

### Peach Blessing

**Vairocana** (万物を総該した無限宇宙の全一(ベアローキャナー), *Bearōkyanā*, lit. "The Infinite Universe That Makes Up All of Creation"): Her Peach Blessing, which allows her to use the abilities of the all eight Buddhas depending on the mandalas that are placed on her pupils, in addition to a manifesting a light ring, which has several cards circling all around her. Ren can activate her two abilities at the same time, as well as being the only who knows what all her abilities are. She is afforded flight and levitation, being able to make her chair float and covering vast speeds in seconds; releasing shockwaves from kicking; negating other Peach Blessings; and teleporting people vast distances, such as the bottom of a distant sea, but unlike Tenka's ability, she cannot use it on herself. However, even this ability can’t negate the “rewards” requirement to use the “Slave” ability.

* **Killer Fang** (無窮の鎖(スレイブ)・殺(ころし)牙(きば), *Sureibu: Koroshi Kiba*, lit. "Eternal Chain: Killer Fang"): The Slave Form, which Yuuki entered after **Ren** acted as his Master, which Kyouka stated was a dangerous form that she hadn't seen before. This form allowing him to instantly kill several Shuuki in a single strike. Despite its offensive power, he fights in a more berserk manner and would even go against the person riding on top of him.. It is likely more demonic than previous forms due to Ren's more cruel personality polluting him compared to other riders having more pure emotions.
	+ **Sacrificial Goat** (贖(しょく)罪(ざい)の山羊(やぎ), *Shokuzai no Yagi*, lit. "Atonement Goat"): This is a special technique, where Yuuki causes countless symbols featuring fangs appearing above his intended target's heads by flashing his eyes, after that he make a bite which causes all their upper bodies to explode as if they'd all been bitten. However, the attack can be stopped if Yuuki is prevented from closing his mouth.

### Physical Abilities

**Immense Strength:** Ren has immense strength above what her feminine build suggests. With even the simplest moves such as beating or slapping her opponents, she could decimate, if not killing them using a couple of blows. As a testament to her strength, she was capable of trading blows with Yuuki in his Killer Fang state without using Vairocana to the point of beating him to a pulp before he regenerated. She can easily overwhelm two Thunder Gods with her strength alone in which the other God is also known for her immense strength (albeit the two Gods seemed to be not serious).

**Immense Speed:** Ren, in addition to her strength has impressive speed, is capable of deflecting bullets fired at close proximity using a single hand. When Yuuki, in his Killer Fang form used Sacrificial Goat against her, she instantly closed the gap between them and incapacitated him before the technique took place. She can take on two Thunder Gods at the same time and overwhelming them with her speed which forced them to retreat.

**Master Martial Artist:** Ren is an extremely capable fighter. Using her tremendous speed and strength, she is capable of dealing lethal kicks and punches to knock down her opponents.

## Trivia

* Her first name **Ren** (恋) means "Love".
	+ Her surname **Yama** (山) means "Mountain" and **shiro** (城) means "castle", meaning "Mountain Castle".
* Ren purchased a dog collar with the intention to put it on Yuuki, making him her "dog".
* Ren's hobbies is playing with her dog (Kaname & Miyabi) and walking in quiet and harmonious places (like Japanese garden).
* Ren's favorite subject at school were history and geography, she loves dog and Java sparrows (and other kinds of birds), she watches a lot of videos.
* Ren thinks of Bell as a friend and companion and whenever she's in a good mood, she starts humming old hits.
* In the "Chief Intel" Section:
	1. **Why she was in Washington:** She participates in many international meetings. She is the symbol of the foreign power that is Mato.
	2. **Where did she get the Shiba Inu Sticker she put on her computer:** She got them from Mira. She liked them, so she put them on.
	3. **Birthplace:** The southern Kyoto area.
	4. **How she met the Shiba inus she takes care of:** They are dogs that strayed onto Mato and she looks after them.
	5. **Favorite food:** She likes traditional Japanese food. Also steak.
* The author, Takahiro's reward: Here, the putting had to be presented through "rubs". Ren loves obedient and charming dogs. She thought of Yuuki as a dog, but during the reward, their positions were flipped. She had a taste of shame.

## References

 Mato Seihei no Slave! Manga: Chapter 57, page 3.
 Mato Seihei no Slave! Manga: Chapter 56, page 2-4,
Ren attempts to "discipline" Yuuto.
 Mato Seihei no Slave! Manga: Chapter 55, page 20-21.
 Mato Seihei no Slave! Manga: Chapter 56, page 4-8,
Ren beats up Yuuki using force.
 Mato Seihei no Slave! Manga: Chapter 49, page 10-16,
Ren uses her powers to defeat Yuuki.
 Mato Seihei no Slave! Manga: Chapter 49, page 10-12.
 Mato Seihei no Slave! Manga: Chapter 57, page 6-12,
Ren giving Yuuki a "reward".
 Mato Seihei no Slave! Manga: Chapter 57, page 15-17,
Ren embarassed.
 Mato Seihei no Slave! Manga: Chapter 49, page 11.
 Mato Seihei no Slave! Manga: Chapter 49, page 5.
 Mato Seihei no Slave! Manga: Chapter 48, page 14.
 Mato Seihei no Slave! Manga: Chapter 57, page 1.
 Mato Seihei no Slave! Manga: Chapter 57, page 2-3,
Ren described as Life's Apex and Earth's Answer.
 Mato Seihei no Slave! Manga: Chapter 56, page 10-12,
Vairocana explained.
 Mato Seihei no Slave! Manga: Chapter 46, page 16-17,
Ren uses levitation.
 Mato Seihei no Slave! Manga: Chapter 47, page 4-6,
Ren uses high-speed flight.
 Mato Seihei no Slave! Manga: Chapter 47, page 11-13,
Ren kicks back attack
 Mato Seihei no Slave! Manga: Chapter 56, page 13-15,
Ren kicks back attack.
 Mato Seihei no Slave! Manga: Chapter 47, page 7-8,
Ren negates petrification.
 Mato Seihei no Slave! Manga: Chapter 47, page 14,
Ren negates bomb.
 Mato Seihei no Slave! Manga: Chapter 47, page 15-17,
Ren teleports opponent to the bottom of the sea.
 Mato Seihei no Slave! Manga: Chapter 55, page 9-11,
Yuuki enters Killer Fang.
 Mato Seihei no Slave! Manga: Chapter 55, page 14-15,
Yuuki kills countless Shuuki
 Mato Seihei no Slave! Manga: Chapter 55, page 20-21.
 Mato Seihei no Slave! Manga: Chapter 55, page 16-19.
 Mato Seihei no Slave! Manga: Chapter 47, page 9-10.
 Mato Seihei no Slave! Manga: Chapter 47, page 13.
 Mato Seihei no Slave! Manga: Chapter 98.6, page 6,
Mira's Chief Intel.