Iris Henson joined Visco's World; it is the hidden, underground fighting tournament in her school. Though heavily kept from public, it was sponsored by the rich and powerful for the sake of entertainment. Whoever reaches the top will be granted one wish, and Iris will do anything to get her hands on it. Although, what's in Visco's World? Wild boys. Lots of 'em. (reverse-harem. if anyone's unfamiliar, it's where the heroine is surrounded by two or more male leads)