Cultivation Is so Simple

How to survive in the fairy world where monsters eat people, demons eat people, immortals eat people, and even humans eat humans? Of course it's a thigh hug! As long as the thighs are hugged well, there are indispensable resources for practice! Lin Zheng, who has a peerless monster master and six peerless little monster brothers and sisters... Oh, I forgot, there is also the most powerful system in history, a system that can automatically cultivate immortality. Lin Zheng could only sigh: Cultivating immortality is so easy!