The Spiritual Energy Is Revived, My System Is Awakened

[Aura recovery + system + behind the scenes + no heroine or single heroine] Zou Yu, who had just received his doctorate, gave up the favorable conditions and resolutely left the imperial capital and returned to Yong'an University. He serves as an ordinary teacher just to fulfill the old principal's last wish and revive the school. It just so happened that the spiritual energy that had been silent for thousands of years suddenly revived at this moment. Animals and plants began to mutate crazily, and the world became perilous... Just then, "Ding! The system is activated. Please check the system functions by yourself..." ... Zou Yu: System, redeem the Body Tempering Technique! ... Zou Yu: System, redeem the armor summoner! ... Zou Yu: System, exchange collection system! ... You can get redemption points by checking in every day and completing system tasks, which can be redeemed in the mall for various items, techniques, techniques, and even the system...