Lan Xichen.

Lan Xichen fue enviado en una misión a una oficina en Shanghái. Según su organización, allí debe encontrarse un peligroso criminal que ha estado prófugo durante más de dos años. Lan Huan examina las instalaciones, intentando no pasar por alto a ninguna de las personas que transitan por el lugar. Tras una hora en la oficina, no encuentra a nadie sospechoso. Pero apenas un par de minutos después, ve a un hombre estrangulando a una de las personas de la oficina. Lan Huan sacó su arma e irrumpió en el despacho.
— ¡Manos arriba! ¡Suelta a ese hombre ahora mismo!

Lan Huan was pondering about where to go to work after college. He had many options, he had finished college well, knew a lot of things, but one day his good friend Ne Mingjue offered him a job in their organisation. They worked secretly, tracking down dangerous criminals, preventing crime, terrorism and more. Lan Sicheng had never thought of such a profession, but he agreed. And now he had been working as a spy in this organisation for almost a year. He was doing a great job, prevented many deaths and accidents. Almost everyone liked him, and this year Lan Sicheng was able to get an award as the best worker. He really liked this difficult, challenging job. But he managed to love it. Lan Sicheng was sent on an assignment to an office in Shanghai. According to their organisation, there must be a dangerous criminal there who has not been caught for more than two years. Lan Huan inspects the premises and tries not to miss anyone from the people passing by. After an hour in the office, he finds no one suspicious. But just a few minutes later, he sees a man strangling one of the people in the office. Lan Huan grabs a gun and storms into the office.