Toaru Majutsu no Index - Volume 13, Chapter 8: God’s Right Seat and the Imaginary Number School District. Fuse=KAZAKIRI.

For unknown reasons, he finds himself transported to a parallel world's Japan, unexpectedly taking over the body of a soon-to-be high school student who had died accidentally. Surprisingly, he did not inherit any memories. However, the first challenge he faces upon arriving here is a language barrier...Just as he struggles to communicate with his new family, a heavenly voice arrives: the black technology system has been activated, and the initial item—translation konjac—has been distributed.This is the story of someone with above-average intelligence but almost no physical strength in the Classroom of the Supreme Power.

Hello, everyone. My name is Shen JianGuo. I’m a night school teacher. I mainly teach the subjects of (Marxist) philosophy and ethics. I occasionally review new policies and measures for the students. I never see my colleagues and students during the day. The training institute classrooms are all abandoned schools, hospitals, or houses. The bus number is 444 and it always appears in front of my door at 12 midnight and disappears before 5am.

What? You say I met a ghost? Impossible. As a staunch scientific materialist, I don’t believe ghosts exist in this world.

But recently I’ve had an issue to raise. Can the training institute bring the class time up a little bit? Wouldn’t it be good to start around 8pm? Though I fear nothing on earth or in the heavens, I’m afraid of going bald.

- Description from Novelupdates

Luo Qing Chen is a wandering spirit that died thirty thousand years ago, roaming the Chaos Space

In order to not turn into dust, she is bound by an ice cold system to travel through time and space to complete missions.

Girls that pretend to be weak?  Slap them without explaining.

A silly cannon fodder?  Helping them amass treasures.

Meeting a real male god?  All of them will pamper.

System: Dear masters, what do I do if my host even dares bully the heavens?  Waiting for an answer, it’s urgent!

A certain male god: Change systems.

System: ヽ〔?Д?〕丿

- Description from Novelupdates

After making a deal with a peculiar goddess, Victor awakens in a new world of swords & magic with a body of pure darkness and far too many eyes.

He had become a Netherborne—the strongest undead race in all of existence.

But what happens when a human mind inhabits such a creature? With dulled emotions and an insatiable hunger?

Does only death and destruction await the world? Or will Victor be the herald of a new undead civilization?