I Become Stronger by Swallowing the Energy of Monsters

The year 2200 was supposed to be an era of improving global science and technology, but space cracks suddenly appeared all over the world. Warcraft continued to come out of the space cracks, and there were even God-realm Warcraft. In order to defeat the Warcraft coming out of the space cracks, countries could only stop upgrading their own technology and decided to join forces to defeat the Warcraft first. Then all the superpowers from around the world, including the God-realm, began to move out, and finally the world At the cost of more than half of the god-level superpowers in the time, they successfully defeated the Warcraft and sealed the space cracks. However, the space cracks appeared again soon after, but the Warcraft that emerged from the space cracks were not very strong. In order to deal with the Warcraft that emerged from the space cracks again, various countries have established organizations to support superpowers. Since the energy is basically focused on the superpowers, the level of technology has not improved very much.