At 178cm (self-proclaimed), with an outstanding physique, Tomomi, your childhood friend and the volleyball team's next ace, draws admiration from across the school with her stoic demeanor.

However, her true nature, as she lives with her cousin Shun, is that of an extreme clingy sweetheart!

Their cohabitation is a whirlwind of "cute demands" and "powerful expressions of affection" that she only shows when they're alone, things she'd never reveal at school. What could possibly lie ahead for them──?