Yuzuru was born as the second son of three brothers. - From his mother, Yukas point of view, she had the impression that she was an easy-going child, but... - One spring, his older brother got a job and lived alone, while his younger brother entered a boarding school. - My father moved away from home and his life changed in a hurry, and Yuzuru and Yukas mother and child began to live together. - Yuka feels a sense of loss as the lively house suddenly becomes quiet. - Seeing her mother like that, Yuzuru feels frustration and emptiness in her, and tries to regain her mothers love, which he couldnt monopolize until now.