Kaito Daiki divorced Kado Yaji, but found that there was something extra in his body. When he placed the child in foster care, he learned that the little guy's adoptive parents died when he was eight years old. So there was an extra tenant upstairs in the 9-to-5 house.
Disclaimer: Originally posted by lof, archived here, I am the original author. Change places and readers just to see how coherent my writing is.
Purpose: The Demon King's family redeems each other and struggles with fate