Resurrection: Obtain a Mysterious Light Group at the Beginning

[Aura recovery + system + single heroine] The world changed drastically, spiritual energy recovery began, and our protagonist Gu Yan discovered a mysterious light group in a cave, and he knew that the opportunity for him to take off began. With Gu Yan's efforts, he defeated the black organization that wanted to kill him time and time again, and also saved the world. [The system will come out in the later stage, there is no system in the early stage. ]