My Space Is so Cool

Note: Don't read this article with your brain in mind, it's just a cool article A post-apocalyptic boss traveled to ancient times and became a newborn, and the other protagonists are still fighting monsters and upgrading? Sorry, my space is at full level. I just want to show off and don't want to work hard. Other protagonists fight against each other and get slapped in the face Sorry, I am the group favorite. What is it? I've never seen it before. Are they those idiots who want to stir up trouble? Fighting the best? If I look at them, I will lose! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.