[SaintessHeart]

We should add more older characters.

Name : Reyvateil Rivia Tchaikovsky
Nationality: Polish, Russian/English Ancestry
Age : 19
Butei Rank: B
Ancestor: Tchaikovsky, mysterious past ancestry
Department: Medica
Bloodline Ability: Gold eyes that are able to see in the dark, an ability to lower blood pressure and calm nerves through singing/chanting
Weapon: A silver-bladed sword named "Grace"
Friends: Ayari/Kanari, Karla, Reisen, Meikyo, Alicia

A fresh graduate from the French Butei Academy, she is under an internship as she intends to earn a medical license in the future. However, due to Ayari and Alicia's plan of setting up a "bungee-jumping" club in school, she was drawn into the fray as there will always be students injured during training despite all safety precautions.

Considered to be Meikyo's nurse and the school's health counselor, she has rather inhuman traits. She claims to be stuck at the age of 18 for the rest of her life because her cells do no deteriorate when sub-dividing, but she may suddenly die after the age of 40 due to an ancestral genetic disorder. Not only that, she is able to see perfectly in the dark without a light source or NV equipment.

The most mysterious thing is that she holds as a weapon : Grace. She says that the sword is not meant to be for men as "it is a symbol of beauty and gracefulness". True enough, it seems that the make and the construction of the sword is meant to be lightweight and having a thinner grip, more fit for a lady than a man, despite being tested to be from the middle ages. However, despite its age and supposed "flimsiness", it is still a sword of perfect quality, and in wind or rain, it is able to resonate sounds to confuse opponents from where the direction of the sword is coming from. Also, the silvered blade of the sword allows Reyva to redirect the sunlight into her opponent's eye, allowing her to close in with ease; at night or under low-light conditions, the sword swings leave afterimages to confuse opponents as to where the blade is coming from. The final unusual quality of the weapon, is despite its weight, it floats on water.

However, it seems that the blade may not originally be named as it is. When replacing the grip, Karla and Reisen had found a set of rune inscriptions on it spelling ᛚᛟᚻᛖᚾᚷᚱᛁᚾ, translated as "Lohengrin", the name of the legendary Knight of the Swans from the middle ages. How had the sword survived so long, and how did it end up in her hands? This is something that she doesn't know herself, other than it was handed to her by her parents in her second year in the French Butei Academy.

Outside of work, she is generally a carefree and gentle young lady, though she doesn't take sides when it comes to solving conflicts between people. She claims that the bungee jumping mystery is the first time she has ever taken a side as "the buffoon on the boat and the drunk party animal aren't doing their jobs as guardians of the two girls".