The protagonist Lin Yan can randomly trigger huge discounts on "items/services", covering a wide range of things: skill cheats, magic weapons, heavenly materials and earthly treasures, intelligence information, and even... Other people's "loyalty" or "skill experience packages".
The discounts are huge, and you can often buy incredible things at "cabbage prices" or even "free prostitution prices." However, the system has "limitations" or "faults", is highly random, has unclear trigger conditions, and occasionally crashes.
