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Han Jee-Han (한지한, Hanjihan) is the protagonist of The Gamer and a recently developed Natural Ability User. Possessing the ability called The Gamer, he experiences life in a game like setting which was derived from his gaming addiction. His best friend since childhood is Shin Sun-Il and his mother is Han Jung-Sook.

He noticed that by leveling up, he could increase his stats and improve his body and mind, among other things. The day after noticing that he can also increase his stats through training (he studied to increase his Intelligence).

The story goes on, with Han Ji-Han deciding to stay in the world of the abyss, putting him in many dangerous situations as he grows stronger to protect himself and those around him.