The Most Powerful Practice System of Fantasy

This book is also called, My system was given by myself? Or I am cultivating immortality in the fantasy continent. Wang Chen almost died due to various accidents, but was taken to another world by his future self, and became the eldest prince who was unable to practice in a fantasy world? Isn't this allowing yourself? Ding~, if you can't practice cultivation, how about cultivating immortality? The practice system is bound, this time, I will reach the peak! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.