Before Azusa met with the noble Beelzebub, how did this plain Zebub who lived inconspicuously becomes the agriculture minister?
Were you able to manage the Demon country ?
Spin off from Slime Taoshite 300-nen, Shiranai Uchi ni Level MAX ni Nattemashita

Hagure Narihira is your average hopeless romantic sophomore in a magical high school for power users. He has no friends and has a crappy ability called the "drain" that absorbs human energy within a radius of 1 meter, unconsciously with his ability. Because of this "special ability", no one wanted to be his friend much less his girlfriend.

"Isn't it strange that power users with abilities creepier than mine can make friends? This world is unfair!"

It was at that moment when his feelings where on the verge of exploding that Takawashi Enju, the girl with the poisonous tongue who everyone in school knew as the "ice princess," spoke out to him. When Narihira discovers her secret by chance, she suggests that they form an alliance with the purpose of making friends. The unexpected proposal causes his heart to dance, however, he had forgotten one important thing... birds of a feather flock together.

Franz is a recent graduate of magic school who is having trouble finding a job — he constantly bungles interviews due to his poor communication skills. With all the major magical jobs out of his reach, there’s only one place left for him to go.

The industry of black magic. Known for being Disgusting, Dirty, and Dangerous, Franz is incredibly hesitant to actually enter such a market until he no longer has a choice. With his back to the wall, he talks to the Black Magic Incorporation’s CEO, who tells him the truth — black magic has shed its harmful exterior, and has instead become Pure, Pleasant, and Permissive. In short, Black Magic Inc. has actually become a white company.

Join Franz, his Cerberus boss, and his succubus familiar as they get to work in a company which actually respects them as human beings, which is probably another cry for help from Japan’s overworked populace in that a legitimately caring company is seen as a fantasy, but you probably already tuned out after I said “succubus familiar”.

The young Arsrod (Arusuroddo), is eagerly waiting for the day that he’s granted a “job” in the temple. In this world when one reaches adulthood, they are granted “jobs” like swordsman or magician by divine revelation, among them the one said to be the strongest is magic swordsman.
Arsrod is the illegitimate second son of a small feudal lord, and the seat is already succeeded by his elder brother who already put him in the front lines, he’s in a position that could lose his life on the battlefield any day. If he became a magic swordsman, a job that was possessed by the famous heroes of the past, he could change his situation.
However, the job that’s granted to Arsrod is not magic swordsman nor any of the other common jobs, it was a mysterious job called “Oda Nobunaga” that none of the temple’s people knew anything about. This job makes one’s battle power become the top-level in the battlefield, gives administration capabilities that allow to turn a small city into a big commercial city and it also elevates the leadership of the troops, becoming a Maou capable of building a country!
Before long, Arsrod defeats his elder brother and becomes the feudal lord. Furthermore, he prepares himself to become a king and build his own country, considering it to be the shortest route to protect the important persons in his life and his people.

Meet Galt Luzen, the Demon Lord. Well, the Demon Lord of his own continent, anyway. After his wife passed away, he gradually withdrew from his social life and started to do more of whatever Demon Lords do.

Enter Angelica, the Hero. Heroine. Whatever. She’s a paladin of goodness, who wants nothing more than to defeat the Demon Lord. However, she is no match for him and is utterly defeated.

As Galt is not a completely evil Demon Lord, he takes Angelica, still unconscious, as well as the other members of her party, back to their families so they can rest their wounds. As he is bringing back Angelica to her home, however, he meets her mother, Reitia - who is the splitting image of his former wife. As he and she bond over tea, Galt’s feelings get the better of him, and he proposes to Reitia on the spot. Surprisingly, she accepts.

How will Angelica cope with a literal demon for a stepfather? Can Galt take care of someone who has taken a blood oath to kill him? Just what are Demon Lords in this world, anyway, for them to nonchalantly treat the battles of good and evil as if they were sports? Read and find out.

Very ordinary company OL (Office Lady), Azusa Aizawa, died from overwork.

For that reason, I decided to live a slow life in a house in the mountains as an immortal witch with the figure of a 17 year old.

The main source of income is to defeat slimes inhabiting the area to acquire magic stones. I sold these at the Guild in the village. Besides that, I made medicinal herbs, became known as “The Witch of the Highlands”, and lived with respect and trust.

However, as a result of continuing to beat slimes for 300 years, the experience values accumulated too much, and I unknowingly became level 99, the world’s strongest witch .

The level 99 witch now works together in the village with her dragon-girl apprentice in moderation, while helping everyone in the village.

From Seinagi:
Ryouta Asagiri unknowingly wanders into a country of vampires that had just recently become independent from Japan. There he meets a pretty little vampire girl named Shiren Fuyukura, who suddenly questions him and bites him, later to claim that he has become her "Minion". He soon finds out that he is unable to leave this country of vampires (The Sacred Blood Empire) and thus decides to comply to the vampire girl in becoming her "Minion".