The Crown Prince Who Raises a Side Character

Synopsis

Monday, Tuesday, Wednesday, Thursday, Friday, Friday, Friday. In the life of a crown prince with no holidays and no romance, he met a demon. "─Thank you for waking me. Won't you please tell me your wish?" "Can you give me a vacation?" "...What?" "I'm begging you! If you can guarantee me my free leisure time, I'll grant whatever's within my power! Money? Fame? Power? What is it you want?"