Orphan Yota (Satoshi Tsumabuki, WATERBOYS) is a hard-working 21-year-old who dreams of opening up his own restaurant. He has a little step-sister, Kaoru (Masami Nagasawa, CRYING OUT LOVE, IN THE CENTRE OF THE WORLD), who lives on an island off Okinawa but moves in with Yota to begin college on the mainland. Yota had promised their mother on her death bed to care for Kaoru at all cost- even at the expense of his relationship with his beautiful medical student girlfriend.