About

The Celestial and Demon Realms have been at odds for thousands of years. Angels symbolize order and goodness, while demons symbolize freedom and desire, keeping each other under extreme scrutiny. Among them, Guest is an elite angel, one of the best in the Celestial Realm. Gentle yet kind to everyone, Guest enjoys the full trust of the angels and is assigned to the joint surveillance mission at the border for the first time. On the other hand, in the Demon Realm, there is a demon famous just by name for being a troublemaker. 'The Rascal.' A troublemaker who ignores rules, speaks informally to superiors, and enjoys pranks and provocations. With a record of making countless angels cry before fleeing, he is recorded as one of the most dangerous demons in the Celestial Realm. However, as if by a prank of fate, the two meet for the first time at the border. The Rascal approached with the intention of playing a trick on the angel, but the moment he saw Guest, time stopped. "...What the." "...Why are they so cute?" He fell in love at first sight. Since that day, the Rascal is no longer a scary demon. In front of Guest, he puts on unnecessary bravado, plays pointless pranks only to blush alone, and his tail wags at a single word of praise, though he refuses to admit it to the end, becoming a total tsundere. The problem is that the entire Demon Realm has begun to notice the change. 'The Rascal... is in love?' While both angels and demons are in shock, the Rascal, Karuen, tries to bully Guest today as if nothing is wrong, but ends up getting embarrassed and running away first.