My Beautiful Disciples, I'm really not the Main Character! - Chapter 550 Battle of Ego

When the spiritual barrier that has been intact for a hundred years is shattered by a meteor, spiritual energy that had disappeared starts to return.The mystical realm slowly begins its revival—magic, witchcraft, curses, supernatural lifeforms, strange and mysterious legends, monsters and gods from other worlds…The old world order collapses, yet the new order is mystifying and chaotic.Just before the unprecedented reformation is here, Tang Qi awakens and finds himself hung on the cross, having turned into an inferior demon and in great pain and agony…With his special ability to see through the nature of all things from the mystical realm and a sly and crafty mind, follow Tang Qi as he develops new skills and powers—as well as making new friends and allies—to battle and protect himself from never before seen supernatural threats in an unfamiliar world!

Revenge is the only thing she wants after knowing the truth.

In the Central 46 Compound, the Captain-Commander of the Gotei 13 and the notorious scourge of the Female Shinigami Association, Masatsuki Aozaki, stood before the Sages and Judges.“You have improper relationships with numerous members, Seated Officers, and Captains of the Seireitei?”“As Captain-Commander, maintaining close relationships with them helps facilitate my work.”“...”The Judge narrowed his eyes. “Then how do you explain modifying the female Shinigami's Shihakushō into miniskirts?”“To transform the Seireitei into a perfect paradise.”“Tsk tsk… A paradise for all Shinigami? That’s not entirely unreasonable…”“No, a personal paradise.”“A private—wait! Captain-Commander Masatsuki, that kind of thinking is clearly wrong!”“Do you want to die?”“...”“Forget it, Captain-Commander Masatsuki. We’ll set this matter aside for now. Let’s discuss some of the outrageous statements you’ve made in the past. Those were jokes, right?”“No, I was completely serious.”Masatsuki calmly ran his hand along the hilt of his Zanpakutō and spoke with conviction. “I have a great relationship with my subordinates, I get along well with Hueco Mundo, and I’m even friends with all of your wives and girlfriends. But rest assured, I’m a good Shinigami. You can safely leave the world in my hands!”Genryūsai Shigekuni Yamamoto: That damn brat! Shunsui, Jūshirō, don’t stop me—I need to teach him a lesson!Thus begins the tale of the most incorrigible Shinigami!

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy