In 2037, the world almost ended. Monsters, including petite goblins and fire-breathing dragons, appeared everywhere — in police stations, schools, city halls, and houses. However, it did not stop there. People’s lifestyles changed: they had a status screen like any gamer would. This supernatural phenomenon gave each person a chance to spin a “wheel of fortune,” which would grant him or her an item, a weapon, a skill, or something else. Each person also received a treasure chest, which granted him or her a class. A group of three students at General Monta High school were alone in a classroom when it occurred. They spun their wheels and opened their chests… their adventure began.