Suzuko is 21 years old and lives at home. A coworker offers to share an apartment with her. After they sign the lease, Suzuko discovers that her coworker has planned to share her room with her boyfriend. However, the day she moves in, the couple have broken up, leaving her with the boyfriend as a roommate. She finds a small kitten on her balcony and brings it in. She goes to the store to buy it food. When she returns, she finds out that her depressed roommate has thrown the kitten out. Finding the dead kitten in the road, Suzuko throws all her roommates belongings out. She is arrested and criminally charged. She ends up in prison. Upon her release, she finds herself dealing with the neighborhood gossip and family conflicts. She decides to save one million yen, move to a place where no one knows her and to continue repeating the process. She discovers many things about herself, as she corresponds with her younger brother, (who is dealing with bullies) and meets new people on her travels.