I died, and my boyfriend was overwhelmed by sadness. I want him to recover somehow ... but I don't want him to make a new... more>> lover right away. And then, my sister, my best friend, my rival, because I'm dead, "Leave him to me!" Don't say that on your own!?? <<less

I was a delinquent that died when an accident occurred on a school trip. When I realized it I was the growing son of a farmer in another world. In this world where demons and demi-humans were in the middle of a war, I didn’t have some ability that made me a hero nor did I have magical powers. I didn’t know anything useful.... more>>

Then, why was I reincarnated?

Wait a second, when I reincarnated, was the girl who was my classmate that was riding on the same bus also reincarnated in this world? Alright, I’ve decided! I’ll reunite with that girl, and reach her with the feelings I couldn’t express in my previous life. <<less

Habiri, the son of an imperial noble and a self-proclaimed special existence, was an arrogant and twisted man. He acted recklessly even at the magic academy, getting involved with s*ave women and earning the disdain of those around him.... more>>

But just as Habiri was being crushed by the truly chosen heroes, realizing the extent of his arrogance, and being expelled from the country, he suddenly found himself back in the past.

This time, Habiri resolved to live earnestly. However, because he started living earnestly, humanity finds itself in a pinch!? <<less

“Compared to our time, the current generation just aren’t as reliable” they said, “Still, isn’t he the son of the Hero?” How annoying.... more>>

It’s been over ten years since the battle between mankind and the demons ended. The children of the heroes who saved the world are all grown up.

One of them, Earth, was a talented man, and everyone expected him to succeed his father as a warrior and defend his country, but Earth was always wary of his father’s title.

One day, Earth is shocked to find his father’s sword, which was used to overthrow the Demon King, sealed in his family’s mansion.

Because trapped within was the ghost of the Great Demon King who was unable to pass on and continued to roam the world.

For some reason, only he could see the spirit of the Demon King, and the Demon King possessed him through the sword.

Every day, forced to coexist with the spirit of the Demon King, they live a strange shared life, when the Demon King whispers to Earth on a whim.

“I have a grudge against your father. If you want to get back at your father and the world, I’ll train you. I’m free.”

Earth receives special personal guidance from the Demon King just to get back at his parents and the world.

Then, in the coming days. The hero’s parents, the heroes of the past, the first love, the princess childhood friend, the geniuses of the era, and the world will tremble. <<less