It turns out that my Yandere playmate online is my Homeroom Teacher - Chapter 1: Oh.... Tria-san??

This book is about the rise of a Beast-controlling Sect disciple. There are a thousand kinds of demonic beasts, all kinds of divine arts, countless worlds, and endless Great Dao.Here, you can see the Beast-controlling Sect disciples riding Western dragons and Behemoths. You can also see the sect disciples controlling Golden-armored Zombies, Flying Yakshas, and fighting Necromancers. One by one, the different worlds will gradually unveil their mysterious veil, revealing their enchanting appearance…

Living things really are ignorant – the greed to obtain the key to knowledge and the fundamentals of energy overpowers them. Little do they know that knowledge is full of lies and energy is the root of destruction. Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.

-Mage Adam

An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

In the past, the giants of the heavens and the gods were destroyed after the reincarnation of the world! Cruel curse, eternal hatred, Tan Yun is determined to never sink again! For the sake of loved ones and relatives, from now on, step on the corpse of the enemy step by step to surpass the peak! Defying the sky, killing all worlds, I am the only one!

- Description from novelbuddy