Summary Jigoku Kawaii Enma-chan from Kainu Manga
Jigoku Kawaii Enma-chan summary: The daughter of the king of hell meets a young man who exclaims that he was sent to hell by mistake. Somehow she misunderstands him & thinks he proposes to her. She accepts but then the heart of the young man starts beating again & he returns to the mortal world with his new bride following him