Apocalypse Online

Gu Qingshan wallowed in despair as Ragnarok inched closer and closer until it arrived.
Yet before he knew it, he was tossed back in time, back to when Ragnarok not yet occurs. Being given a second chance, Gu Qingshan aspired to rewrite the future, only then he realized that there was more to the secrets of Ragnarok than he initially knew...