Introvert Yuan transfers to a new school. There he meets Jackson and Junkai, who are responsible for the big  changes in his life.

One unlucky night Zhengting happened to witness a killing of the notorious serial killer of young males. He quickly stumbled upon a young detective named Lin Yanjun, who really avoided the case. What will happen when Xukun the leader of the team puts him in charge? 

Felix was new and lost in Korea when he found Changbin. Then a love story began (my descriptions are never good, but the story is good) 

   Jongup is a good human, he always tries to help anybody who asks for his help. One rainy day he finds a homeless boy on the street asking for help, Jongup had no other choice than to take him, but he never knows the boy's past.

Doyoung had a small memory loss, but he doesn't mind as long as his friend is there for him. But a visitor from the past wants to remind Doyoung some things. What will the person reveal? How will Doyoung react?