Keiichi is so naughty, I can't be his son anymore!! Keiichi is raising unrelated twin sons, Ren and Takumi. Ren is a promising researcher, and Takumi is a swimmer at the national level. Keiichi loves his sons, who have both grown up to be excellent, and wants to grant them all their wishes, but on their 20th birthday, he never expected them to ask for something... "I want my body..." A love triangle between the two of them, a family and lovers, drawn intensely and passionately by Kado Saeko!!