Tang Fan goes undercover and Duo'erla gets forcibly made a distraction. It all turns out okay, though.

"There is nothing truly new on earth, they say. There was a time Wang Zhi believed that." Tang Fan and Sui Zhou have brought new experiences, sensations, and feelings into Wang Zhi's life since the moment he met them, and even after several years of friendship, things can still be new. (A story set several years after canon, exploring the physical side of the trio's growing romantic relationship.)

What Tang Fan wants, Sui Zhou wants to give.

Tang Fan never spares a smile for any of the girls at Wang Zhi’s establishment, he’s noticed. That's alright, though. It means Wang Zhi gets his attention for himself. - An exploration of Wang Zhi and Tang Fan's relationship.