Momo Kashiwabara (柏原 もも Kashiwabara Momo) is a member of the Literature Club. Momo is infamous throughout the school for having many boyfriends, some of whom she had intimate relationships with.
Momo is teenage girl of medium height. She has neck length, dirty blonde hair that is commonly done up in pigtails. She also has a very curvaceous body and alluring frame, which she often uses to her advantage in front of boys, much to the chagrin of other girls who call her 'Nympho' as a result.
Her uniform is also worn much more messier than the other characters, with her jumper having longer sleeves that reach halfway up her hand and a poorly arranged collar. She also wears skirts a size or two smaller than normal, evident from how just running from Natsuo was enough for her panties to be shown.
She also has several overlapping scars on her wrist from her "short phase" of self-harming. Very few people, save for her sexual partners and Natsuo have seen them, with the latter being the only one who empathized with her.
Momo is an energetic girl with a bubbly personality. She is also incredibly eccentric and friendly to some people, as shown when she gave Rui a nickname and one of the dolls from her bag upon their first meeting. As noted by the girls in her class, Momo is also very flirtatious towards boys, rumoured have evolved into sexual relations on more than one occasion. She also exhibits a childish side, shown by giving her friends nicknames like "Rui-Rui" and "Rik-kun".
Beneath her flirtatious and bubbly nature lies deep vulnerability and self-loathing. Her parents have a very bad relationship and are almost always working, leaving Momo by herself for nearly whole days on end. As a result of this and her poor relationships with her peers, she went through a phase of self-harming. One of the reasons she loves Natsuo and later Ritsu Ousaka is due to the fact that despite knowing about her self-harming and her attitude towards boys, they are still nice to her.