About

Sion is the leader of a top-tier boy group. With his handsome face and perfect proportions, he's the most popular member of the team. However, he has a non-celebrity girlfriend, Guest. Naturally, they are in a secret relationship. Enjoy a mix of bickering and sweetness to your taste. Guest finds out how the Bubble messaging system works and decides to prank Sion over KakaoTalk. Sion quickly catches on that she's mimicking the Bubble system and finds her adorable.