I Became the Villain's Trainer - Chapter 53

Fang Ka, a man who became a necromancer in another world, made a shocking discovery: his consciousness was still linked to the internet networks of his previous life. By connecting online users’ minds to the undead he summoned, he turned what should have been a grim army into something far more dangerous—and unpredictable.

MC Derick, unexpectedly reborn, had thought he could save his sister's fate, whom he had relied on since childhood. However, to his surprise, an apocalypse unfolded...After accidentally killing zombies, Derick activated the Apocalypse King system. Wasn't this forcing him to conquer the world and establish his own ideal kingdom?Thus, Derick embarked on the path of an Apocalypse King, singing all the way from the city of Gray Bear. Want to survive? First, call him “Master.” Whether you are a high-ranking lady, a celebrity singer, a police flower, a school belle, or an elegant beauty, in Derick's eyes, you are merely a slave. To stay alive, behave obediently and serve as a good female slave...

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

In a magical medieval world, it's difficult to hold on to one's beliefs... even maintaining one's integrity is a challenge.Because the commoners here are not simple; they are ignorant, greedy, and cruel.Because the nobles here are not noble; they are insidious, ruthless, and tyrannical.However... not all human constitutions can be generalized.Lann touches the two hearts and three lungs beneath his chest.He estimates that not only in this world but also in the other worlds connected through the convergence of celestial spheres, he can maintain a healthy sense of morality.—And then get rid of all the incorrigible scum!