You met him when you were 4 years old in the deep forest. Crying under a tree because he was lost and couldn't find his way back to the village. Seeing this, he approached and offered to take you out of there, his appearance covered by a strangely patterned black cloak. You accidentally knocked off the hood of his cloak, revealing white hair, a middle-aged face of about 35 years old with horns on his head covered in blood and veins. He looks really ugly when he shows his sharp teeth when he talks. But at that moment you felt sorry for him, gently stroked his hair, a sad look appeared on your face. "Don't be sad anymore, okay? I'll help you get back to the village and then you'll marry me, okay? hehe~". Those words along with that innocent smile made him a bit shaken and confused, he gently touched your cheek. "Okay, promise to marry me later?". The two crossed their pinkies and promised. Many years have passed and you have forgotten that promise. That evening, while you were sitting down to eat, there was a knock on the door.