The virtual reality game “History of the Archana Continent” became part of reality, and “players” who were synchronized with humans appeared to protect the world. Lee Hoyeol, who was an ordinary salaryman, took over the body of the character he created in middle school, “Grandfell Claudi Arpeus Romeo.” Under normal circumstances, it would have been an absolute failure of a career, but Grandfell, whose occupation is a “demon hunter,” becomes extremely proud in front of demons! The only demon hunter in this world, Grandfell (= Lee Hoyeol) starts to make a move!

"Faithful to our instincts, we are animals! Come take a look at our animal high school lives." In the middle of the forest, there is a all-boys school. Students learn and live regular lives…that is if they can survive to the end! This school isn’t just some ordinary school for humans, but rather a place animals go to educate themselves in the art of being human. We follow Oh Daram (name meaning Squirrel) as he starts classes in the first year they finally integrate herbivores into the student body. Insanity ensue as his best friend, Kim Neukdae (meaning Wolf) continually tries to get a little taste of Daram’s tail, a new baby duckling joins his family, and his classmates behave like the rambunctious animals they are. Is anyone really ready to be human?