I am an ordinary office worker. I was accidentally assassinated by a gangster and then reincarnated into a different world and became a slime.
After experiencing various things, I became the Demon King and traveled through time again while my friend Milim was experimenting with new spells.
Good news: No strange creatures reincarnated this time
Even better news: The great sage teacher who knows everything also traveled through time with him.
The new world is very similar to the world before my reincarnation. Here I was invited to become a teacher with two students, one lively and cheerful, the other stable and reliable.
Due to the different speed of time in the two worlds, I found that everything had changed when I returned to the new world.
Both students died, and the friend who invited me to become a teacher also died. One of my friend's students had his body taken away by an unknown creature, and another student was cut in half in front of me.
I was angry, very angry, and I was unhappy.
[Short story, a product inspired by comics, plus I'm reading Slime recently]
Purpose: World peace
