Kokono has a crush on her coworker Aoba, but there's one problem—he only seems interested in women with big breasts, and he constantly teases her about her small chest. Convinced she'll never catch his eye the way she is, Kokono can't help but wonder if things would be different if she could change herself.

On her way home one day, an accidental encounter with a mysterious stranger takes an unexpected turn, forcing Kokono into a situation that leaves her flustered and questioning her feelings. As her insecurities and emotions collide, she begins to realize that attraction, confidence, and love may be far more complicated than she ever imagined.