Apocalypse: The Game Descends, and I Fuse with a Mutant Monster

[Apocalypse Setting + Game + Class Advancement + Beast Taming + Invincible + Leveling Up + No Romance] Wang Haosen transmigrates into a parallel world where a game has become reality and everyone changes class. After the “First Cataclysm,” the world is already a living apocalypse. Monsters are everywhere, and humanity is barely hanging on... Wang Haosen obtains the Monster Fusion System, awakens the rare hidden class [Summoner], and gains the SSS-rank talent [Monster Fusion], which lets him fuse any monsters into mutated summoned beasts. He even breaks the taboo and fuses humans with monsters, creating entirely new species... Insect people, beastmen, biochemically enhanced humans, plant people, mutated zombies... Some mutated monsters even have the ability to reproduce, allowing their numbers and strength to grow at a terrifying pace! Gradually, Wang Haosen takes command of an entire army of monstrous creatures and establishes his own territory, becoming someone the world fears. “Want me to join you in conquering a dungeon? Sorry, I'm an army all by myself!” “The Second Cataclysm is coming? My territory is the safest place in the world!” Those fortunate enough to have seen him with their own eyes describe him this way: “A disaster-class player even more terrifying than the Cataclysm!”