Tutorial-i Neomu Eoryeopda

Lee Ho-Jae had given up his life as a pro gamer, until one day he received a mysterious message:
“Congratulations! You’ve been invited to the Tutorial World.”
Intrigued, he enters the game and confidently chooses “hell” difficulty, but soon learns that he is trapped there. With a mere 0.01% survival rate, Ho-Jae must somehow overcome the game’s agonizing challenges to figure out the real reason he was invited. This tutorial may be tough, but its secrets are what’s truly hellacious.
(Source: Tapas, edited)