I Am a Scumbag, and I Am Cultivating Immortality Based on My Strength.

The counterattack of the scumbag started when he was made to stand outside the classroom corridor by the teacher... This book is for ordinary people, you won't be invincible at the beginning, and your golden finger will not be against the sky! Not a brainless cool article! Not even a harem! The author has been writing for twenty years and likes to talk about logic in everything! The world view is not grand, and I have no intention of saving all mankind, only protecting one country and one family! It's set on Blue Star, but not on Earth! Any similarity is purely coincidental!