Married for almost millennia, the two used to terrorize the underworld with evil, Sukuna king of curses and Yoru Demon of war, when they return to the surface so as not to attract attention they stay in a temple in a small town in the interior, and enslave the villagers to serve them as God, one day Sukuna went to casually destroy something, and when he returns Yoru is angry with him because he accidentally destroyed a cherry tree.

Yoru:You damn idiot! Why did you do that!