Kenji was born as the second son of a three-sibling family. From his mother, Aoi's point of view, he was an easy-to-raise child... But one spring, his older brother got a job and lived alone, and his younger brother entered a boarding school. His father's life changed busily with a transfer, and Kenji and Aoi began living together as mother and son. The lively house suddenly became quiet, and Aoi felt a sense of loss... Seeing his mother like that, Kenji felt regret and emptiness that she only cares about her sons, and tries to monopolize his mother's love...
