Up-and-coming singer Un-In performed at a restaurant in a condominium downtown. His life was going well until his persistent ex-boyfriend Heart, a young investor who Un-In broke up with two years previously, came back to him. “Just this one time and I’ll let you go your way.”Since they decided to go separate ways, Heart hoped Un would end up with someone who truly loved him and made him even happier than he did. But it turned out that it was too hard for him to resist. When the two saw each other again, he hoped he would go back with him. But the harder he had tried, the unhappier his ex-boyfriend had gotten. On their upcoming anniversary, Heart asked Un to hang out with him. This would be the last time, and he would go his way. He found it, perfect love which many were desperate to find, but failed to keep it.(Source: Viu)