Guren, a second-year high school student, awoke in a strange world that coincidentally resembled the VR game he adored. He was unsure, however, because he lacked proof. As he searched for his reason in an unknown place and with an unknown goal, he came across various people, monsters, and other creatures that did not exist in his previous world. Thus begins the young man's adventure, the chronicle of his harem, in this world of mystery, with his trusted companion!