[Not invincible + two-player survival + single female lead + no system + not a saint + disaster]

Everyone travels to an unknown world to participate in a two-player survival game.

This world has endless natural disasters and terrible monsters...

Wang Ping'an's teammate is his childhood sweetheart Luo Ningxue.

Start with a magical tree house that has life.

They need to work together back to back to collect resources and build a tree house, starting from scratch!