We Are Each Other's Enemy Chieftains, and We Fight with Our Brothers in the Game World.

An unexpected car accident caused four good friends from the orphanage to travel to the game world. In this fictional world equivalent to the mid-eighteenth century, the four brothers started from different identities and gradually developed into leaders of various forces. Finally, they competed in the world to see who can become the eternal hero who will unify all the summers. Let us grow up with these four ordinary college students.