There are a few novels that meet the requirements. 1. "Invincible in All Worlds Begins from Fox Demon": This light novel is a derivative doujinshi novel. The protagonist can travel through the origin of various worlds and achieve invincibility by destroying the plot and cultivating to absorb the origin power of the other world. It sounds very suitable for your needs. 2. "League of Legends: Invincible Skills": The main character of this fantasy novel traveled to a different world and became invincible through the system that obtained the hero's skills. That sounds interesting. 3. "Steve is Invincible in Minecraft": The main character of this novel, Lu Li, used his gaming knowledge to dominate the foreign world and was called "Steve is Invincible." It was worth reading. I hope you like my recommendation. If you have any more needs, feel free to look for me! Muah ~