Hwang-su discovered that he has a heart disease, still he chose to keep it a secret from his boyfriend His boyfriend named Dong-Guk is always been busy and sometimes he would not come home so Hwang-su can't help but to feel anxious Hwang-Su and Dong-Guk have been together 10 years now, and even though their relationship is quite long for a same sex relationship, they still kept it a secret until now because that's what Dong-Guk wants, he doesn't want to be judged and Hwang-Su understand him fully Little did Hwang-Su know that his long time boyfriend is keeping a deep secret from him