I Have a Group of Grandpas in the Universe

Since that day, mankind has entered an era of great mutation. Creatures from countless anime, game and novels have broken into reality, and the earth needs a savior... Then, a guy wearing various jewelry stood up. "My grandpa is the Qin Dynasty Sword Immortal Gai Nie!" "My grandfather is the Pirate King Gol Roger!" "My grandfather is the Sage of Six Paths!" "My grandfather is Chen Beixuan, the Supreme Being of the Immortal Realm!" "We are the protagonists!" Bai Zichen looked at this funny guy quietly. Silently looking at the old man in his ring. He proudly thought about the terrifying existence in his mind. This is an era of fighting for grandpa. My brother has a machine that makes grandpa. Seriously, don't be too happy. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.