Junkai always had a harsh life. Getting beaten up by his father and being unloved. Yuan always stood on his side, even when Junkai took the wrong way.

Yuan lived a simple life, until his father died in an airplane accident. Suddenly, his father's best friend wants to complete the wish Yuan's father asked him. He took Yuan to his house, along with his two sons Junkai & Qianxi. The boys dont accept Yuan & a big story begins, messing up Yuan's life more. 

Justin records Yanjun, a cruel assassin, killing. Things get complicated when Yanjun biggest enemy, Xukun, lays his eyes on Justin and his brother Zhengting (bad description, but the story will be fine)

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?