The story follows a mental hospital patient who mysteriously transmigrates to a fantastical world where he gains extraordinary abilities. Each new power comes from mundane actions like consuming unusual substances, with the protagonist repeatedly announcing his discoveries with phrases like "oh, yes, I got a new ability." Despite accumulating nearly omnipotent powers throughout eight volumes and hundreds of chapters, the protagonist consistently fails to utilize his abilities intelligently during confrontations with villains.
Throughout his journey across this new realm, the protagonist faces numerous adversaries and challenges, but his victories and defeats seem manufactured due to his inexplicable reluctance to use his full potential. The narrative creates artificial tension by having the protagonist act foolishly despite possessing powers that should make him invincible. This pattern repeats across all eight volumes, with each of the 100 chapters per volume introducing yet another ability that joins his ever-expanding arsenal.