[Feel-Good Story + System + Horror Dungeons + Rebellion + No Goody-Two-Shoes + Ruthless + Invincible Protagonist]. Don't read if that's not your thing.
I'm the world's strongest butcher, one of the final bosses of the five major dungeons, yet I've been bound to the Human Race Revival System.
What? I've already chosen to stop being human and become a boss, and now you're asking me, a boss, to revive the human race?
[The System's goal is to revive the human race and restore its former glory, saving it from the brink of extinction!]
[Clear dungeons, obtain professions, grow stronger, and lead humanity through the real dungeons belonging to the five final bosses.]
[Scan complete. The final bosses are: the craftsman of Artisan Valley, the butcher of Villain City, the knight of Thorn Kingdom, the gardener of Blood City, and the demon of Demon City.]
I'm supposed to fight myself?
Come on, I can come and go as I please in these guys' lairs. Do I really need to get stronger before clearing them?
Believe me, if you dare assign me a mission, I'll clear it right away.
Hm? Another stat-allocation panel? Hm? The stats can stack?
From then on, Chen Shuyu, who had two Systems, began sweeping through bosses everywhere. He would overturn the world's entire understanding of stat monsters. When a stat monster has double the maximum stats, it's invincible!
Chen Shuyu: Sorry, I'm a stat monster!