Cashback System: My Senior Sister's Wellness Services

Zhang Yang's cultivation shattered, his body withered to an old man's husk—until a bizarre consumption rebate system kicks in. The catch? To unlock rewards, this white-haired relic must purchase "wellness services" from beautiful women. From foot massages by his senior sister to testing his old classmate's flexibility, Zhang Yang's shameless requests know no bounds. As his lifespan ticks away, every transaction brings him closer to reclaiming his youth and power. But when fiancés get jealous and streamers start auctioning stockings, things spiral wildly out of control.