Top Class Master-ui Gwihwan

Ray, the star all strong admire, is Haons' top-class master. Before the final hurdle to becoming a god, Ray is betrayed by his submaster, Anus, and dies. He returns to his days as the "strongest loser, Kang Tae-Wook," trampled by bullies and unable to protect his fiancée. Kang Tae-Wook once again seeks revenge on those who betrayed and ignored him, the things he couldn't accomplish. However, there's another reason he had to live with his miserable past. Kang Tae-Wook plunges into an abyss of conspiracy that deepens the deeper he delves into, and the second installment of his blood-soaked life begins!

(Source: KakaoPage, translated)