Cultivation of Immortality in Two Realms Begins from the Countdown

In the third year of Xianmen High School, everyone was preparing for the Xianmen Examination, but Chu Huan was about to be expelled. At this time, his girlfriend suddenly found him. He thought that the other party was here to break up, but his girlfriend said that she was willing to face it with him. He doesn't know how to accept his girlfriend's kindness, nor how to get rid of the fate of becoming a low-level cow horse. At this time, he suddenly discovered that his soul could travel between the two realms of immortality. One is a planet with highly developed civilization, where monsters in the void are rampant and resources are extremely scarce. But it has scientific cultivation theories and powerful and profound cultivation techniques. The other is the ancient world of immortality. Although it is rich in resources, natural materials and treasures can be found everywhere. But the exercises are very low-end, and the theory of practice is also very backward. Chu Huan used the resources of the two worlds of immortality to step on the left foot and the right foot to improve and become stronger, and finally ruled for eternity.