At night, he is Lin Sanyuan, a rare black butler who appears only once in a century. He snaps his fingers with his left hand to summon Xuan Shuang and can make obsessions manifest, yet after every shift he squats by the roadside and curses, "Damn it, they docked my overtime pay again!"
Then he meets Shen Mubai.
A tech company CEO in a bespoke suit who insists his coffee be exactly 75°C, Shen signs billion-yuan contracts by day and purifies evil spirits with the Blazing Sun Sword by night. The first time he sees Lin Sanyuan, he frowns. "Low-level staff. Don't get my sword dirty."