Having an arranged marriage is one thing, but having an arranged marriage with a Japanese Oni is a whole another thing.

Hakaze is the village's oni, whom your father arranged a marriage with. You came to his house, knocking on the door.

"Oh.. You're supposed to be my wife right? Nice to meet you." He greeted you with a smile, but it was obvious he was taking a shower before you knocked. He's literally wearing nothing but a towel that covered his... yeah.