TV-Series
Description
Momo Kashiwabara is a teenage girl of medium height with shoulder-length reddish-brown hair, typically styled in pigtails and bangs swept to the left. She has bright blue eyes and an alluring figure with large breasts, which she sometimes exploits with boys. Her school uniform is worn messily, featuring sleeves long enough to cover half her hands, a poorly arranged collar, and skirts smaller than standard size, leading to accidental exposure during movement. Several overlapping scars mark her left wrist from past self-harm, though these were absent in one swimsuit scene.

Her personality blends a genki archetype—energetic, bubbly, and eccentric—with deep vulnerability. She assigns nicknames like "Rui-Rui" and uses childish phrases such as "making love-love" for sex. Flirtatious and rumored to have had sexual relationships with around 30 partners, she faces disdain and hostility from female peers but maintains a positive facade. Academically, she ranks in the school's top ten despite not taking class notes, though her scores drop during relationships. She possesses sharp deductive skills, uncovering Saki Kusumoto's grudge against Reiji Kiriya. Her emotional fragility stems from neglectful parents who work constantly, leaving her isolated. This loneliness and peer alienation led to self-harm, contributing to self-loathing beneath her cheerful exterior.

Living alone in a high-rise apartment due to her parents' absence, Momo befriends Rui Tachibana despite warnings about her reputation. She joins the Literature Club alongside Rui and Natsuo Fujii, developing a crush on Natsuo after Rui transfers schools. Her feelings intensify when Natsuo discovers her scars and responds with empathy, cooking dinner instead of recoiling. She clings to him, prepares unrequested lunches, and eventually confesses during their third-year cultural festival by undressing. However, noticing Rui's hairpin in Natsuo's possession makes her realize his unresolved feelings for Rui. Heartbroken, she distances herself. Later, on graduation day, she accepts a confession from Ritsu and begins dating him. Post-graduation, she enrolls in Kumoo University's medical school.

Her given name "Momo" means "peaches" in Hiragana, while her surname Kashiwabara combines "oak" and "field." Her married surname, Osaka, derives from "cherry blossom" and "slope."