Daehyun once loved Yongguk but after what Daehyun realized what his lover was doing behind him, their relationship was over. Yongguk on the other didn't want to let go of him so he ends up chasing after Daehyun. What he himself did not realize was that he had changed. He was no long the same kind caring person he use too. That's because Yongguk was going crazy for Daehyun. Daehyun was also going crazy because of Yongguk.