Mitsuha is a beautiful, high-achieving, and well-mannered schoolgirl. Raised in a single-parent household with her younger brother, she struggles financially. She fell several months behind on tuition payments for her brother's school and ultimately had to give up her own chance to advance academically. However, she couldn't bear to let her brother suffer the same fate—she was determined to at least get him into a good school. With limited ways to earn money as a student, she made the decision to increase her market value by selling her still pure and beautiful body to unscrupulous men. For money, and for her family. This choice would become a major turning point in her life.