Demons Invaded, I Created Serial Demons!

"Sequence, I can fuse demons!" [Decisive killing + no heroine + cool writing + multi-scene story] Demons invade and spiritual energy revives! Chen An runs a paper-making shop, but the arrival of the demon disrupts his peaceful life! When life and death are at stake, the paper in the store comes to life! Kill the demons and fuse the demon souls! Sequence Demon 001: Shadow of Nothingness: Cover the earth with darkness! 002: Iron Tail Scorpion King: Puncture all illusions! 003: Broken Demon Island: Gravity suppression, crush them all! ………(Beginning of Chapter 41) But unexpectedly, the devil broke the barrier in advance and came to the world! Bite! System upgrade is in progress... The serial demon ability has been upgraded! Shadow of Nothingness → High Priest of Deathrattle (Listen to the call of Deathrattle and stand up!) Iron Tail Scorpion King → Tyrant Lord (All races are ants!) Colossus Island → Rock Ape Titan (Crush them!) Devouring Flower Matrix → Sky World Devourer (Mine! They are all mine!) ……… Demon God: You are so ungrateful in martial arts. Those are my soldiers! Chen An: What do you mean? Even you are mine!