Yukio was the demon lord’s son, And Yukio’s betrothed is the child of the demon general Ba, though Yukio was a bit against it at first since Ba’s child is male, he had quickly changed his mind because the boy was really cute, though this became a new obsession over the years of requesting that his fiancé come to visit or stay for a few days, and he doesn’t have the self control to stop this addiction of seeing him all the time