Hyejin is in love with Hyunjin's lips. They're dating and it's no secret how much she adores them. Hyunjin is aware of Hyejin's obsession with his lips. Despite this, they enjoy their relationship and the little quirks that come with it. Their love story is filled with laughter, affection, and the occasional teasing about Hyejin's fondness for his lips. But ultimately, it's just another thing that makes their relationship uniquely theirs.