Fuji Shuyu, the twin brother of the genius Fuji Shusuke, has a second life experience, and is another genius hidden under the name of his brother's genius.
He is low-key and gentle, but deep down he is indifferent and cold. He values his family, respects his brothers and sisters, and loves his younger brothers. A black-bellied person protects his shortcomings, is lazy, likes quiet and dislikes trouble. See how such a person can live his life peacefully among the passionate tennis princes.