Hardcore Leveling Warrior

Known as Hardcore Leveling Warrior, Ethan is the #1 player of the world's biggest game, Lucid Adventure. But when a mysterious player kills Ethan and forces his character back to level 1, he will do anything to get back on top. New friends and old foes, as well as mysterious forces and his own dark past, will follow him as he does his best to take back what was once his.

(Source: Webtoon Entertainment)