Shinya balances running a struggling cafe with the chaotic demands of his two step-sisters, Chika and Chiori. Between financial mishaps caused by their eccentric boss and supporting their coworker Aya through a heartbreak, Shinya is forced to confront his feelings when the sisters are scheduled to move to America. After a desperate and embarrassing dash to the airport, Shinya is overjoyed to find that his sisters are staying in Japan, promising more heart-fluttering days at the cafe.