It is that Chanyeol Baekhyun and DO they are friends.
Baekhyun think Chanyeol like DO. He envied DO And one day Baekhyun makes DO injured almost died
Chanyeol angry And after that, he hates Baekhyun. But in heart he really loves Baekhyun. And Baekhyun had escaped from Chanyeol.
several years Baekhyun come back And stay in tower with Chanyeol. Chanyeol do everything to Baekhyun know him very disgusted and angry Baekhyun. He doesn't know that Baekhyun a serious disease. He can live for a few months. Baekhyun lost several years because he admitted. But he would return to the people he loved most. that's Chanyeol He wanted to spend the rest of his loved ones. But Chanyeol very cruel. He does like Baekhyun an air and flattering. Over Chanyeol realized that I Baekhyun. It was too late