An Interpol policeman with a child-like appearance disguised himself as a college student to investigate a major drug and arms case. Liu Siyan's mission alias: Robbery, and his mission name: Tulip. He was 23 years old.
Incarnate as college student Xu Xichen, who looks like a cool university figure, but is actually a drug dealer and arms dealer in his family. He does not take drugs, but sells drugs. He is not simple, but he seems normal, making people confused about his true situation. He is usually closest to Chen Qizhe, and Chen Qizhe has also joined this dangerous transaction. 25 Years old
Incarnate as Yu Daoqing, a college student, gentle and considerate, an Interpol trained with thieves in the UK. He always has an automatic pistol by his side. When he is not smiling, he is really a serious and handsome detective. His mission alias is Civet Cat. 24 Years old
Chen Xue, a college student, is the daughter of a big businessman. She is unruly and willful. She thinks she is very powerful and has the support of her father. She likes Xu Xichen and makes things difficult for the thieves, but she doesn't know that the thieves don't take her seriously at all.
20 Years old
The story revolves around the twists and turns of their love, as well as the mission of Tulip and drugs Shen Xue begins.