Akira is staying at his aunt Akiko's house while job hunting. Akiko, always kind and warm-hearted, has long been someone Akira deeply admires. One day, he accidentally catches her masturbating in the bathroom, leaving him shocked and confused. Soon after, Akiko confesses, "I'm so lonely." Unable to suppress his feelings any longer, Akira pulls her into a tight embrace, and their relationship takes a deeper, more intimate turn.