Kenji was born as the second son of three brothers. His mother, Honami, gave him the impression that he was an easy child to take care of, but... One spring, his older brother got a job and started living alone, while his younger brother enrolled in a boarding school. His father was transferred away from his family, and life changed drastically, leaving Kenji and Honami living alone. The once-bustling house suddenly became quiet, and Honami felt a sense of loss... Seeing his mother's behavior, Kenji began to worry only about his siblings...