川神百代

青梅竹马中唯一的高年级生。主人公不过是她其中的一个手下，她是他的大姐头。 从古时候开始就一直以武士的锻炼圣地扬名的关东三山之一、川神院的继承者。凭着压倒性的战斗力排在第一位的王者。 虽然是美人兼最高年级，不过因其强大而被男生们敬而远之，反过来因为倍受女生追捧，总是逗着女生玩。 对于社会的规矩有一点不以为然，但是绝不容许谎言的存在。 将主人公当成好使的家伙、有作弄价值的家伙，将他放在心里。

简介来自 Bangumi

The "older sister" of the Kazama Family, and one of the last members to join. Momoyo did not join the group on her own, but was more "contracted" in when a group of older kids started beating up Yamato & Co back when they were in elementary school. Yamato asked Momoyo to join and help them, and she agreed to do so on the condition that Yamato become her eternal underling. Having been together since then, they have developed a brother-sister type of relationship. As one of the main heroines of the story, Momoyo is the heir to the Kawakami Ryuu style of kenpo, and so far remains undefeated. Her daily life includes answering challenges, taking cute girls out to lunch, borrowing money from people due to her own unwillingness to get a part-time job, and (of course) training. Despite the constant passes she makes at other girls, she claims to be straight; she often mentions that she simply hasn't met a man that interests her. Momoyo, for lack of better words, loves to fight. It is the only thing in life that she finds true joy in. This is a side of herself that she struggles with as the story moves forward, made worse by the lack of competent challengers that come to fight her. She's even made something of a reputation for herself due to winning all fights with one punch. It has gotten to the point that the other members of the Kawakami Ryuu believe that she needs to find something else to focus on outside of fighting, or she could permanently become akin to a berzerker. Momoyo's virtue of Bushido is Makoto (Honesty, or 誠). [From LiveJournal]

简介来自 VNDB

幼なじみの中で唯一の上級生。主人公をただひとりの舎弟とし、姉代わりになっている。 昔から武士の鍛錬場所としても名高い関東三山のひとつ・川神院の跡取り娘。 圧倒的な戦闘力でヒエラルキートップに君臨する。 社会のルールにしたがっているかは微妙だが、嘘はつかず筋は通す。 主人公のことを使えるヤツ、からかい甲斐のあるヤツと目をつけており、なにかと構ってくる。 「可愛がられたい奴は、順番に並んでおけよーっ」

简介来自 Getchu