When Do Kyungsoo and Kim Jongin were children, they would always play house. Kyungsoo would play "mama" and Jongin would be "papa". Their parents thought it was just child's play. However, years later, both boys realized that their feelings had evolved past playing and were now blossoming in ways no one saw coming. Since then, the two have settled down and are now raising a son named Chanyeol and two paternal twin boys, Zitao and Sehun.