Konomi Kuramochi is a shy, pure-hearted teenager with striking red eyes and waist-length auburn hair. Her appearance suggests an older age, fueling deep-seated insecurities about seeming dull or uninteresting. This self-doubt surfaces as hesitance and uncertainty in social interactions. Her quiet pursuits include handicrafts, reading, and cooking.

Her growth begins when a classmate develops romantic feelings for her. Initially rejecting his affection due to low self-esteem, she gradually warms to their time together. However, intimate moments fluster her intensely—her boyfriend’s openness about physical relationships and tendency for dirty talk trigger visible discomfort, though she participates. While she eventually enjoys their physical connection, she remains conflicted about its future.

A turning point arises when she spots her boyfriend with another girl in town. Mistakenly concluding he only sought physical intimacy with her, she resolves to assert herself. During their next encounter, she takes bold initiative to prove she deserves exclusivity. Though the other girl is later revealed as his sister, her actions force him to confront his feelings, leading him to realize his attachment extends beyond mere physical attraction.