Marui Kanojo to Zannen na Kareshi

Mariko is an energetic nurse who openly jokes about her body. Nagi, a student, feels uneasy around people with curves due to a negative experience from his teenage years. Despite this, he is drawn to Mariko's cheerful nature. She has no prior experience with romance, and he is naturally reserved. As they spend time together, they begin to overcome their personal biases and develop feelings for each other.