Happy Massage

The local massage salon, run by the girl called Lin Lin.

Massage
After paying $15 on the desk, you can do some massage, which would give you the Relaxed status effect.

If you are Aroused, you can additionally demand the "happy ending" (a variation available for having a dick, or having a pussy). If you done so, Lin-Lin would ask for a tip ($20). If you refuse to pay, she would be annoyed (see below).

The Revenge
See also: Devil's Drink

If Lin Lin was annoyed by not receiving her tip, or was humiliated on arena, she would take some vengeance the next time you visit her.

The big rescue
See also: Cassie's rescue

If you visit Lin Lin while working on the Cassie's rescue, you can ask Lin Lin about the Don's people's schedule (increasing your chance to successfully reach Cassie and return back), and hire her to help with the infiltration itself.

Getting inside the UNA
See also: Runaway master

If you pay Lin Lin for massage while carrying any Counterfeit Pass in your inventory, she would notice it, and tell you how you can improve them with the help of the local tattoo master.