Toshynori Yagi didn't think there was anything he couldn't handle until a mission crossed his desk that involved espionage. He needed to find a wife and a child in a week in order to prepare them to get into a prestigious kindergarten to befriend Katsuki the youngest member of the nefarious Bakugo family. The fate of the world depends on six year old Deku and Katsuki getting along. (SpyXFamily au where Allmight is Twilight Inko is Yor and Deku is Anya)
3 parts