The Last War : Celestial Rebellion

Year 9998.



Humanity has almost regained what it lost in the Great Forth World War, which lasted for almost a century.



Except the world gained something, which has been elements of stories among children.



Magic.



And with magic arose, different kinds of races, like elves, dwarves, vampires, werewolves, and...... demons.



They started living among normal human races in all the planets of the solar system, that were inhabitable.



Among those planets, the red planet, Mars, has established itself as one of the superpowers, with the help of the great families along with the Royalty that rule over the Central Mars.



However, more than often, in this land of peace, a portal appears, from which comes out giant monsters, to destroy everything in front of them.



Our MC, Kai Rayleigh, a young high school boy, living in the slums, with his younger sister, delves into the mystery behind those portals, not because he wanted to, but because someone mysterious, wants his sister.



To protect her, Kai lunges into the battlefield, in which the enemy is unknown.



And the true identity of the enemy would lead the world into another long lasting war, which would leave not a single trace of life.



Then, how our MC would fit into this warmongering situation?