Reset: Shinma Jyuunishito Senki

In Jaehyung Shin’s timeline, all is lost. The war between the disciples of the divine and demon realms has left Earth a shattered, crumbling wreck. At the moment of his death, the god that stabilizes the balance of the world grants Jaehyung another chance to stop Earth from being destroyed. Jaehyung is sent back 100 years to the beginning of the war, armed with a new power and one simple task: stop the apostles from destroying everything. (Source: Tapas)