MTL - Apocalypse Cockroach - ~ Catching snakes Author: Who stole my cup

【First Simulation: You are transported to a world of cultivation】【You become a refugee fleeing famine. During your journey, you save an abandoned baby girl and become her elder brother】【You rely on each other, becoming each other’s support】【At the end of the simulation, you shield the now-grown girl with your life, sacrificing yourself to block numerous demonic cultivators. You die, and the light in the girl’s eyes fades】…【Second Simulation: You are transported to a world where steam and magic coexist】【You immerse yourself in the study of magic, obsessed with its research. One day, while out, you encounter a half-blooded demon girl wandering the streets. You take her in as your student】【You teach the demoness what it means to be human, show her the beauty of the world, and nurture her into a miracle that surpasses even the gods】【At the end of the simulation, you die of old age in front of the nearly immortal demoness due to your mortal lifespan】…One simulation after another, one encounter after another.Xu Xi suddenly felt something was off: “Wait, you said you’re coming to the real world to find me?”

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates

After spending his sixth year at Hogwarts a century ago, Harry finds himself back in the cupboard under the stairs in 1991, once again receiving his Hogwarts acceptance letter.“You’re telling me my parents were killed by a dark wizard?” Harry asked. “Who is this dark wizard? Why are you all so afraid of him that you won’t even say his name?”“It’s Vol—,” Hagrid began cautiously. “Well, we call him Voldemort, because he personally killed hundreds of people.”Harry nodded nonchalantly.“And what happened the next day?”Hagrid: “Uh?”--

Leo is an academic genius who enrolled in one of the top universities in the world for the rich and powerful, but he was born in a common family, which was more than enough of a reason for the other students to mess with him.