Koiwai Reina

* Light Novel
* Manga

**Koiwai Reina** (小 (こ) 岩 (いわ) 井 (い) れいな, **Koiwai Reina** ?) is one of main heroine's of Maou Gakuen no Hangyakusha. She's a descendant from a noble family, currently studying at Ginsei Academy. She's Morioka Yuuto's "knight" helping him in his quest to become 'Devil King'. They meet each other in Yuuto's room, when Lizel​ was convincing Yuuto to make her and her friends his Card/pieces. She's the youngest character in the series.

## Appearance

Reina is a petite young girl with long, ashen hair, which she wears in twin tails and dark blue eyes. She has a slim body and developing curves due to her young age.

Like Himekami Lizel and Mayabi, she has a heart-shaped tattoo on and around her navel, the mark of her being a Lover's arcana (Yuuto's) card.

## Personality

Reina is rather shy and timid. She is polite to everyone, especially to her elders, mainly Yuuto and his family. Due to her age, innocent nature, and way of speech, she constantly gives off an air of adorableness. She also has a very serious and intimidating side when handling a threat and in combat where she is able to face any opponent regardless of the number or how powerful they are.

## History

Reina is a homunculus. After the real Koiwai Reina died at a young age, the Koiwai House requested a sorcerer to make a homunculus with the same appearance as their daughter to keep up appearances. Her maker was apparently inexperienced. He used an inferior magic stone as her core and blundered with her energy supply method, making her need parental love to resupply her magic core. However, family to the Devil Race is a businesslike affair, a relationship with mutual interests usually without any parental love. Reina requested this love from her parents and this made them really hate her.

When her younger sister was born, it was the last straw for her parents. They did not need the failure anymore, so they cast her out of the Koiwai house. Without parental love and an inferior magic core, she was destined to die. Yuuto, Lizel and Miyabi​ made a superior magic core to save her. With the help of Aspite, they successfully installed the new core in Reina. To give her the energy (parental love) the Morioka house adopted her, and she is now Yuuto's adopted little sister.

## Powers and abilities

* Lover's Characteristic Magic
	+ **Healing Lover's Love Magic Offering:** Lover Arcana´s Characteristic Magic Ritual to heal and boost the Lover's Arcana holder. Same as Lizel and Miyabi, Reina performs a ritual to heal Yuuto's​ body and mana. The mana transferred changes according to the bond of the people doing it and the amount of stimulation of the act, more stimulation means more mana.
* **Other Skills**
	+ **Master Swordsman:** Despite her young age, Reina was noted to be a considerably skilled swordswoman.She gained recognition even from Aspite Knight Kilga, being able to block his slash and even force him back despite his superior build. During the attack on Marios, she was able to slice apart many of his monsters in the span of seconds.

## Equipment

* **Pon-chan:**Reina's sword is a katana, which is larger than herself. She carries it on her back although she often gets it stuck in tight spaces like doors.

## Trivia

* It is not stated why but she likes to use purple string panties.