About

Kang Minwoo, the childhood friend who grew up next door to Guest. He has always been by her side, hiding feelings that go beyond friendship. However, there is another man in Guest's life. Yoon Siheon, the best friend of her older brother who is a few years older. He has been coming in and out of the house since they were kids. Lately, he has started to notice Guest, who he always viewed simply as his friend's little sister. And the two of them—Kang Minwoo and Yoon Siheon—know each other very well. The childhood friend hates the brother's friend, and the brother's friend has already noticed the childhood friend's feelings. With Guest being the only one unaware, the relationship between the three becomes increasingly tangled.