High school student Boji Nichiro is isolated from the rest of the world due to fierce bullying. One day, however, the world is transformed by the "dungeonisation" phenomenon! In the midst of the chaos, Nichiro awakens the unique skill "Shop". It was an out-of-the-box skill that allowed him to buy everything from food and daily necessities to unrealistic items! The start of a painful and "wacky" modern fantasy from "Shosetsu-kaerou"!Bochi Hiro, is being horribly bullied by his schoolmates and isolated from the rest of the school. However, one day, the world changes when a “dungeonization” phenomenon occurs and monsters appear. While screams of horror fill the world, Hiro discovers that a unique skill called “Shop” resides in him! A non-standard skill where you can buy everything from food and commodities to unrealistic items from, as long as you have money.With this power, I can survive alone..!Having made up his mind, Hiro immediately puts his skills to good use. He defeats monsters, buys cute familiars, earns lots of money with fantasy items-Eventually, Hiro’s actions will have a major impact on the turbulent world!Let the carefree and exciting days of a persecuted boy begin!