Kenji, the middle of three adult brothers, had always seemed like the easy child to his mother, Fuyuka. One spring, his older brother moved to Tokyo for work, his younger brother left on a sports scholarship, and their father took a distant assignment, leaving mother and adult son alone together. Fuyuka feels lost in the suddenly quiet house, while Kenji resents how much attention she gave his brothers and longs to claim all the maternal affection he could never have for himself.