Height: 173cm

One of Mizuho's classmates who figures out that he is a boy almost immediately after their second meeting. Thankfully, she tells him that she will keep it a secret from anyone else. Shion becomes an advisor and a female role-model for Mizuho.

She has a silent demeanor and voice, which helps to give her a gentle and appealing appearance to the rest of the students. One year previous, she had to leave school due to an illness and had to spend her time in the hospital, all which occurred right after she was elected as that year's Elder. She had come back this year in order to repeat her last year, even though she still isn't fully recovered.