The "Great War of Heroes," in which the hero and the demon king vie for survival and power in each incarnation. The fourth great war was also a war where the heroes defeated the Demon King… it's an undisclosed fact. Twoeight, the ace of the “Agency” in the dark side of kingdom, undertakes all the dirty work for country and supports the Hero to subjugation the Demon Lord from shadows. As the unsung hero, Twoeight hopes to live a peaceful life after the war. However, defeating the Demon Lord is not enough to bring peace to the world.

This is a story about an awkward boy who is a former “behind the scenes” agent. Fights, opposes, and tries as hard as he can to protect his daily life.
Original Web Novel: https://ncode.syosetu.com/n2133fo/

Years after the end of the world, two girls tour the ruins of Japan.

From NHFH Scanlations:

Sakurako Kawawa has moved into a boarding house to attend high school, excitedly waiting her first meeting with her new roommate. And who should arrive at her door but Kasumi Yamabuki?
Kasumi is absolutely stunning, but she marches at the beat of her own drum. Her carelessness awakens the "big sister" inside of Sakurako.

Youichi is a very serious, stoic young man with a girlfriend and a regular sex life. However, he has never experienced sexual self-gratification. Recently, he's become aware of a book called "Masturbation" at the library he works at -- an educated discourse into the history of the sin of Onan and related practices. Finding himself increasingly intrigued by the concepts within, he begins to conduct a series of experiments ... Join him as he embarks into a whole new world!

"In this village, death inevitably takes those who have reached 50 years of age."

By custom, all villagers who have passed the age of 50 are bound and taken to The Netherworld on the other side of the mountain. Officials clad in beast skins manage the village, "The Living World," whose people are watched over by gods. Meanwhile, the People of the Mountain remain shrouded in mystery. Anzu, who sacrificed the older of twin girls to the mountain, is torn between hope and despair.

Land, a story that reflects Yamashita Kazumi's unease for the nation of Japan.

Shouji Osamu is an elementary school teacher fresh out of college about to embark on his first day. At the school gate, he was suddenly hugged by Chise, a girl he doesn't recognize who seems to know him. He later finds out that Chise is a fifth-grade student in his class, and that she lives in the same apartment building as he does. During a late-night rendezvous, he learns that nothing about their encounter is coincidental.

Legend has it that Nobunaga died in the fire at Honno-ji, but the truth is, he survived! And after that, he vowed to take back the world by his blade! Meanwhile, Hideyoshi and Ieyasu also aim to grab hold of the country, while Mitsuhide plans to assassinate Nobunaga! These swirling ambitions create a new chapter in history! Get ready for some fun historical fiction filled with wild imagination!
From Renta

Moriyama Kouta was once an unsuccessful adult manga artist. Due to lack of popularity, he was even on the verge of going out of business.
But one day he became a very popular author with vividly realistic and charming portrayal of his heroines.
The reason for the sudden change in style was that Kouta has taken his younger sister Shizuku as his model......?!

twin succubus sisters fight against each other to get their stepbrother's sperm.
well, you know.. the usual family friendly stuff.
and yes the author also made hentai doujin

The twins, Oona and Hooru, are girls who come to the house of Takeuchi Kou, a super-skilled JAV Actor. They looks like a normal girls but they're actually not. In fact, they are succubus who devours human sexual desire. The reason they are in Takeuchi's house is to be with their beloved Takeuchi Kou. However, the succubus can't fall in love with a human because of their species barrier. In order to make this possible, there was a way for a succubus to become a human. That is... To collect "Kintama" that can be obtained through no nuts for a day. In order to get the "Kintama", they pull each other's legs, make each other come, and interfere with each other, and the no horny survival battle begins

The adventures of Kishi Mieko, a woman office worker, trying to succeed in a competitive, unforgiving and lewd work place in Japan. She will use all her 'assets' to succeed in her projects!

The fox who has lived for a millennium will outsmart the humans?!

In China during the Jin dynasty, it's said that a millennial fox lived in the tomb of King Yan Zhao of Zhou.

That fox, Guangtian, goes to meet with Zhang Hua, who was well-known for his erudition, in order to compare his wisdom with the humans...!?

A strange and humorous historical fantasy between the supernatural and the humans!

The sequel to Ten - The Nice Guy on the Path of Tenhou. Set in 2002, 3 years after the fated events in Ten.

At first glance, it's a four-panel comic that doesn't seem like much at all. However, when you read the last panel, the world changes completely!? When you turn the page, there is a newly drawn explanatory page. Mystery and horror that can be enjoyed by both children and adults. A collection of gems of short stories that will leave the world horrified by Aki Konishi, a master of 4-panel manga.

Searching with you, the theory of love and everything else.

Aoi is an office worker who isn't good at interacting with people, but one day, he meets a mysterious person called Q chasing butterflies in the park at night.
As if drawn by something, Aoi chases after Q but is suddenly enveloped in a mysterious light and before he realises it, he finds himself on board a spaceship!
Q was an alien who had come to collect living creatures!
Through the various species they collect, the 2 who know nothing about love will embark on an adventure to find out just what love is!

Married life begins for Niizuma-chan and Daa-kun!

In a world where human Professions are determined by nature, there was a person who was the strongest, despite being [Unemployed]. Fuuta, who trained harder than anyone else to achieve this and became a champion was cast out and exiled. At the end of his wandering, he finds a new start.

When a demon falls for an angel...

Long ago, a great war raged between the royal military forces of Lugnica and the demi-humans. A hero was born on that battlefield--the Sword Demon, Wilhelm Trias. This is the story of that legendary swordsman--and the woman he loved.

Q likes eating monsters and donuts, a lot.

The 100% transparent mob character Hachiya-kun. The highly communicative and popular Kumakura-san. But, when she removes the bear mask, she becomes extremely shy, unable to talk to anyone, and she likes Hachiya-kun...?! A coming-of-age love comedy.

Boy that was taking peeping photos is blackmailed into becoming subject of a female bondage artist.