The World of Fusion Becomes Invincible Starting from Meeting a Magical Girl

The world is in crisis, and humanity is under huge threat. People in crisis want to change the status quo, and they have come up with the idea of ​​summoning humans from other worlds to help them. The summons resonated with each other, merging countless worlds together. However, a world where humans are in danger summons another world where humans are in danger, and countless worlds where humans are in danger come together! In the world of swords and magic, the all-powerful demon king, nineteen demons, will dominate. In the future world, AI rebels, Iron Man is out of control, and out-of-control robots want to wipe out all humans. In the primitive world, tyrannical giants wreaked havoc on the earth. In the heroic world, there are more and more weird people emerging in an endless stream, becoming stronger and stronger, as if they are going to crush everything. In the world of ghost stories, there are terrifying balloons floating in the sky, fish with human characteristics, women with swirls on their faces, more and more supernatural phenomena and unspeakable monsters appear in that world... And even humans don't seem to be that simple. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.