Synopsis：Yu Jin has always had one person by his side: his older friend Tae Yoon, who has looked out for him since they were kids. But Tae Yoon’s constant kindness has become its own kind of torture, as Yu Jin can't stop his heart from fluttering every time Tae Yoon does something caring. Yu Jin swore this would be the year he finally gave up his one-sided love – yet every caring gesture and protective glance pulls him right back in. Caught between loyalty and longing, Yu Jin struggles to keep his feelings hidden. Meanwhile, Tae Yoon struggles with feelings of his own for Yu Jin, but he's conflicted about seeing Yu Jin in a romantic light due to their long history as friends. As misunderstandings, hesitation, and long-buried memories collide after fifteen years, will the feelings they’ve both held back finally come to the surface?