Versatile Mage: Start with Companion Starworm

"Upgrade flow", "not brainless", "does not follow the plot", "single girl or no girls" are about it. This book tries its best to write the magical world as realistically as possible. Lin Wu travels through the world of magic and is reborn, and his soul is born with star bugs. He upgrades and enjoys it all the way. He sees different scenery in the magic world, meets many like-minded people, and asks for the pinnacle of magic together!