Upon the release of the virtual reality game Tower of Trials, it attracted dedicated players because of its extreme difficulty. However, its reputation quickly declined once people realized they could not complete the game. Nevertheless, after 11 years of trial and error, content creator Kang Jinhyeok becomes the first to finally beat Tower of Trials. As Jinhyeok plans to abandon his passion for a more stable income, he faces a surprise—Tower of Trials has appeared in the real world! Furthermore, a notification declares that players must clear all of the Tower's floors within 90 days, or all of humanity will perish. To Jinhyeok's advantage, the manifested building replicates the game version he has just defeated. With his extensive knowledge of the Tower, Jinhyeok decides to conquer it once more to save mankind from certain doom.