Zuho has been working hard his entire career as everyone knows. But before he even become Zuho, SF9s rapper, he was Baek Juho, a trainee, a boy who needed to sacrifice some things to get where he is now. And there is one decision that he keeps on regretting until now, a sacrifice he thought was the best but after he did it, he kept on thinking it was not.His decision to run away from her, to break her heart together with his own, to leave the woman who believed in him through the years, to let go of the best thing that happened in his life. Will things ever be the same?Can he go back?Does he deserve to be healed?