HxH: God of Choice System - Chapter 401: Cooperation

Yang Tian, a Legendary Beast Tamer who tamed Legendary Monsters such as the Six-Wing Purple Gold Lion, the Undead Lich, and the Thousand Feet Ghost Vine has returned to three days before the Post-Apocalyptic Era begins.

An RPG gamer who played the realistic VRMMORPG ‘The Amber Sword’ for years, finds himself teleported to a parallel world that resembled the game greatly. He takes on the body of an NPC who was fated to die, and with the feelings of the dying NPC and his own heartrending events in the game, he sets out to change the fate of a kingdom that was doomed to tragedy.

- Description from novelupdates

College Freshman Chu Tian suddenly obtained a special ability – his body would automatically transform according to the comments made by others.