The Invincible Thug Signed in at the Beginning

The starting system gives an invincible thug as a gift Let's see how the protagonist does whatever he wants in the world of immortality, pushing him all the way, and all the enemies will be bullied by him and have a mental breakdown. The protagonist's purpose: to pretend to be the best in others, so that others have nothing to show off. Reminder: This book is a truly invincible and enjoyable book, there is no discomfort at all, so you don't need to use your brain when reading it, it's just enjoyable.