Crazy Water World

All of humanity is forcibly transported to a survival world completely submerged by seawater, where people can only stay alive by fishing and salvaging supplies. College student Xiao Hao unexpectedly fishes up a rainbow treasure chest on his raft and obtains the "Sex Points System," which lets him accumulate points through sexual acts to exchange for survival supplies and shelter upgrades. He publicly solicits on the world channel for women willing to trade their bodies for supplies. His college classmate Lin Wan initially curses him as shameless, but two days later, with her supplies exhausted, she comes to him on her own initiative.