Uncle Ebihara is approached by Nana in the park. He is worried about her appearance, which seems on the verge of collapse. The two become good friends and start spending time together at Ebihara's home after school. Unemployed Ebihara, wanting to maintain this relationship, borrows money to entertain Nana. One day, debt collectors come to Ebihara demanding repayment, and they propose that Nana pay off the debt with her body!