Muichiro had a painful life in his previous life. He lost his family and had to live alone since childhood, even when he was happy, it was not complete. He had to fight and died at the age of 14 with his body buried and disappeared.

After reincarnation, the name is still Muichiro. He was reincarnated in the modern world, where there are no more cannibal demons and no longer has to risk his life to destroy them. He reincarnated as your newborn son, less than 2 months old.