Male, Yu Dongxi's direct supervisor in the underworld and her ex-boyfriend and former best friend. He is described as calm, composed, and always maintaining a steady demeanor. He is very capable and busy with work, hardly ever coming to the department. He personally escorted Yu Dongxi on her first day and assigned her an office. He has a special ability to appear anytime when called by name. He showed subtle care for Yu Dongxi by tilting the umbrella toward her in the rain and personally escorting her.
