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After transmigrating to another world, Gu Wen unexpectedly acquires a TRPG system. Building dungeons, guiding players, and clearing storylines—Gu Wen originally thought everything would just go like that. However, what he didn't expect was... ancient and mysterious anomalies suddenly becoming active, extraordinary heterodox beings starting to stir, awestruck investigators... and zealous cultists... Years later, when Gu Wen looks back on the path he has walked, he cannot help but sigh with emotion: "In the very beginning, I really just wanted to be a small business owner..."