The Beginning Was Born in the Bathroom of a Vocational School!

An oral high led to an accident, which led me to another parallel world. The first thing I did when I came into this world was for me to attract the attention of the "Dean of Education"? But when living in this world, I find that there are evil ghosts everywhere, torturing and killing people, and humans seem to be cattle and sheep in captivity. But human beings are still unaware of the coming danger, and are still engaging in intrigues, intrigues, and cliques for personal gain. It seems that everyone is thinking about themselves. Should he save mankind, drive out all the evil ghosts in the world, and completely block the passage from hell to the human world? Or should he be completely disappointed with mankind, completely liberate the evil ghosts in hell, and turn everything in the world into a human purgatory! [Protagonist: sinister, cruel, not a virgin, dual personality - normal personality and extremely evil personality...]