Lenoias is a planet in the Milky Way in the universe. Its volume is about five times that of the Earth. It is generally no different from the Earth. Creatures similar to humans also live on Lenoias. Compared with Earth, the technological level of Renoias is only in the cold weapon age, but humans living on Renoias can learn magic.
On such a planet, what is about to break out is a cruel war between all races, and the human protagonists are five students who have just graduated from the academy. In this cruel battle, they have grown up, they have quarreled and parted for friendship and love. But in the end, friendship and love brought them back together. No matter what the final outcome will be, they rely on each other to survive this cruel war...