In One Piece with a Family System.

It's been 28 years since he was reincarnated in the world of One Piece. Who would say that he would obtain a system related to having children to become powerful, despite already having several children, they seem to want even more mothers and more brothers and sisters.

As the youngest daughter, Mina has the four-star template of Namikaze Minato and on her trip through the East Blue, she met Nami, who returns to Cocoyashi Village.

Her words to her are, "Sister Nami, would you marry my father and be my Stepmother?"

Others, such as his son Satoshi, travel to the East Blue to the Shitmotsuki village to resurrect Kuina, who had a superior talent with the sword than Zoro himself, and his last objective is Loguetown.

Could Reinhard have a peaceful life despite the chaos that his children generate?