During the day, he was a humble technical secondary school student traveling through the city, struggling to make a living, and was looked down upon by all.
When he fell asleep at night, his soul passed through the underworld and was appointed by Yama of the Ten Palaces as the son-in-law of the ten princesses. From then on, hell was his home and the princess was his pillow. Delivering food during the day and cultivating supernatural powers at night, let's see how ordinary teenagers play with yin and yang, and find their own way to heaven between reality and the netherworld.
