Sunghoon and Sunoo have been best friends since childhood, their bond unbreakable yet quietly complicated. As they grow older, Sunghoon's possessiveness begins to clash with Sunoo's growing circle of friends, sparking jealousy and misunderstandings. Their friendship faces challenges as emotions shift, leading to a delicate dance between love and friendship. As they navigate their complicated feelings for one another, they must confront the truth about their relationship and decide whether to embrace the love that has always existed between them-or let it slip away.