 Her aunt Izumi (her mother's younger sister), an aspiring manga writer who hates dogs and babies, comes to live with Natsumi.They do not get along very well, with Natsumi calling her 'Oba-san' (Auntie) instead of 'Onee-san' (Big sis) as she would prefer.While watching a movie, the baby appears in front of Natsumi.