Zongman: A Stranger Male Protagonist Starts from a Child Husband

On the evening of April Fool's Day, April 1st, the Kasumigaoka family held a family meeting and announced two things.

The first thing is that Dad has to go to Hokkaido for a while because of a job transfer, and Mom will go with him.

The second thing is that the youngest son Dongzhi in the family is not his biological son. He was picked up from the doorstep on a winter night fifteen years ago. The couple saw that the child was cute, and they didn't have a son, so they adopted him as their son and adopted him as a child husband...

ps1: The protagonist traveled through time with his body, and for unknown reasons he turned back to his infancy!

ps2: In the fusion world of Zongman, when the assets and income reach a certain level, you can legally marry multiple wives!