Junpei Yamagishi has been hopelessly socially awkward for as long as he can remember. At the age of 28, his life suddenly comes to an end, only for him to awaken in the fantasy world of a game he spent countless hours playing in his previous life. But this isn't the kind of isekai where the protagonist is handed an overpowered cheat ability. Junpei has no special advantage, and his crippling inability to communicate with others makes something as basic as forming an adventuring party nearly impossible. To earn enough money to survive, he becomes a summoner and sets out alongside the creatures he summons. Junpei soon discovers that knowing the game doesn't make living inside it easy. Battles that once amounted to numbers on a screen are now brutal struggles where a single mistake can mean death, and even lowly monsters pose a genuine threat. Unable to rely on cheat powers or even other people, Junpei must overcome his weaknesses, grow alongside his summoned companions, and somehow survive a fantasy world far harsher than the game he remembers.