Occupation: high school student
Powers: ability to communicate with plants & animals
Reincarnation of: Mokuren

Arisu is a cute Japanese girl with black hair. She love animals and plants, lots of people don't understand her, but her brother Hajime takes good care of his bigger sister (someone says that he is the reincarnation of Modo). Arisu is a timid girl and has difficulty to make friends.
At the beginning she is terrified by Rin and his jokes that plays on her. She become friend with Jinpachi and Issei who talk her about the moon and listening about that make her feel nostalgic. But the day she has to baby sit him she begin to like him. When he has the accident falling from the balcony, she suffers a lot. Than when Rin wakes up, he asks for her and when she come they embrace each other (the most beautiful moment ;_; I always cry when I read it or see it...) and Rin asks her to take him to the zoo again. When Rin come out from hospital, he kisses her and she reacts like every 17 old girl would react to a kiss given by a 9 years old boy, and when she come home her mother asks her if she accept being engaged to Rin. She than fell unconscious and she dream about Mokuren and Shion being together...she like Mokuren. They are alone on the moon in a sera of plants looking to the Earth. She accepts the engagement. In school she tells to Issei and Jinpachi what she dreamed about and she draw Shion and Mokuren.
Her mind refuses to remember her past because she is afraid to remember something, Rin than breakups their engagement and when he vanish in nothing, she finally found out that she really love him and miss him... Than on a school trip she fall ill and begin to dream her past like Mokuren, while Issei finds out the symbol of being blessed by Surjalin.
Rin kidnap her, and when she sees him again she is happy and sad, but she tires to convince Rin to destroy the Moon Base.
When it's all over and Rin is in coma, she makes everybody come to the hospital and with her "Mokuren" power she with all of them travels in the Rin's dreams calling him back. And when he woks up she says to him that he is very important to her and that she loves him.
At the end she is engaged with Rin and sometimes the spirit of Mokuren returns in her.