I am an aspiring mangaka, currently assisting in the production of erotic doujinshi as a middle school student. While I was reading doujinshi at school, a beautiful girl very interested in erotic things, Sasha-san, suddenly called me "Master"!?

The story of a beautiful, cheerful girl volunteering to be my ecchi disciple.

(Source: Kadokawa, translated)

Ash is a young boy with apparent past-life memories who lives in a remote, deserted village. As he remembers leading a bountiful life, he can’t bear living in a world akin to the Dark Ages, where not even the internal combustion engine exists. Ash envisions the rebirth of a civilization where housing with proper sanitation is the norm and the world is connected via a means of transportation faster than horses. For that reason, he is eager to consult books containing knowledge from a highly-developed ancient culture that is rumored to have existed far in the past. Ash makes use of the church’s resources, learning how to read and obtaining the knowledge that he seeks. In addition, he enlists the help of the people around him, including Maika, the village chief’s daughter. Together, they aim to develop their own village. This is only the beginning of the story about a young boy who sets out to revolutionize the world in order to rebuild civilization and create his ideal life!

Dungeon x Childhood Friend!?

Let's watch over them, in this warm romantic comedy!

At the bottom of an impregnable underground dungeon awaits the final boss, the mighty black dragon Obsidian. The one who dared to challenge Obsidian is Van, an experienced adventurer who has fought many battles with the dragon over the years.

The battle between two passionate souls is about to begin—!

After losing his girlfriend to a brave hero, Toru is expelled from his S-Rank party. With a feeling of sadness and pain in his heart, he defeats a demon he meets outside the city, and his ability [to save experience] is broken! Toru becomes level 300 in the blink of an eye! With this power that far surpasses that of heroes, there is nothing that can stop him. Kaede, a slave he met on his journey, forms a group called the "Mangyu Brigade", and easily completes dungeons, acquires the legendary sacred weapons, and thanks to his skills, his friends level up easily! He rescued a countess who was attacked by bandits on the road, and befriended a legendary beast. Oru's journey continues at a leisurely pace, as he repeatedly encounters various people along the way, while his former party of heroes are deprived of opportunities to play an active role and fall into decline. This is the beginning of the life of a 300 level warrior!

Original Webnovel: https://ncode.syosetu.com/n9483ge/

From Tokyopop:

When the school's two biggest troublemakers get into a tussle, there's nothing left for them to do but fall in love! In Love Attack, you'll find a rollicking brawl of a good time as the roughest guy and girl in school get themselves into trouble--and find themselves in love.

Chiemi Yusa's high-school record is far from perfect. She's already been suspended twice for fighting, and she's not even half-way through her first year! In danger of getting expelled for starting yet another brawl, her teacher approaches her with an unexpected offer: get her classmate Akifumi 'Deranged Devil' Hirata, the nastiest fighter in the whole school, to clean up his act, and her record will officially be cleared. Reluctantly she accepts, and immediately goes on the attack. But as she's waiting for him to retaliate, she discovers that he has more in store for her than just a fight! From the creator of Girl Got Game and Heaven!! comes a rollicking brawl of a good time as the roughest guy and girl in school get themselves into trouble--and find themselves in love.

From the author:

Spoiler (mouse over to view) This is the story of how Hirata-san (whom Kyou met when she ran away in Vol.9 Ch. 32 of "Power!!") met his wife. It was supposed to end after one chapter, but somehow it was decided that it would be continued.

I, an ordinary high school student, Kimizuka Kimihiko, who easily gets involved in things, was appointed to take care of mysterious attache cases by mysterious men in black suits. After meeting a beautiful angel-like detective girl, named Siesta in a hijacked plane, I became her assistant.

And from there–
[You deal with the beehive, and I’ll restrain the enemy.]
[Don’t make plans that make me the victim.]

We had those kinds of foolish conversations, all while being completely broke every day and fought against <The enemies of the world>. Even when there were hurricanes, the weather-beaten duo sleep past it. Sometimes when we saved money at a casino, we would jump around on the beds at a resort hotel, only to be broke again the next day. We would walk through deserts, traverse through jungles, conquer mountains, cross oceans– The great detective and her assistant would go through these dazzling adventures–

Until she died.

And this story starts from 1 year after that incident.
I’m the only one who’s left, but I carry on her remained wishes.
This story is far from over..

Kimihiko Kimizuka, a young man who four years ago became the assistant of a mysterious detective known as "Siesta" on a hijacked airplane. Together, Kimihiko and Siesta went on mind-boggling, globe-trotting adventures while combatting a secret organization, but all of that came to an end when they were separated by Siesta's death. In the present day, Kimihiko tries to return to an ordinary, boring life as a high school student, but things are never that simple, even though the detective is already dead.

I've gained the ability to see the affection levels of the girl I like. I don't have the courage to confess my feelings to my childhood friend, Marika-chan. One day, I made a strong wish upon a shooting star: "I wish I could understand the feelings of others, like in a dating game." Then, that wish came true...!? Floating above the girls in my class are affection meters. While confused by this surreal sight, I decide to check Marika-chan's meter, only to find it has broken past its limits, turning into a hellish meter...!?

"Marika-chan, you don't like me, so why are you so kind to me...?" What is Marika-chan's hidden truth behind her cute façade? Does she really hate me!? Or is it something else...!?

Penelope Eckart reincarnated as the adopted daughter of Duke Eckart and the villainess of a reverse harem dating sim. The problem is, she entered the game at its hardest difficulty, and no matter what she does, death awaits her at every ending! Before the "real daughter" of Duke Eckart appears, she must choose one of the male leads and reach a happy ending in order to survive. But the two brothers always pick a fight with her over every little thing, as well as a crazy crown prince, whose routes all lead to death. There's even a magician who's enamoured with the female lead, and a loyal slave knight! But somehow, the favourability meters of the male leads increase the more she crosses the line with them!

This is Penelope’s survival story, who’s been dropped in an insane reverse harem dating sim!

Annoying! Cute! But Annoying!

The daily life of a quiet college student who just wants to left alone, being teased by his cute, stacked underclassman.

If you become a hero and defeat the Demon King, a life of idleness awaits you...! This is what the young man Jirei believed, and he worked hard day and night to achieve his goal. However, when he found out that the heroes who defeated the Demon King were the ones who were doing all the hard work, he ran away. But the girls that Jirei had been saving on his journeys before he knew it came pouring in one after another to win his heart and body...?

"Are Takagi-san and Nishikata-kun going out?"
Grand prize winner in the Takagi-san cup!
A girly (?) love comedy about Takagi-san's classmates. Written with the seal of approval from the original author, Souichirou Yamamoto.

From classmates to brother and sister, living under the same roof.

After his father’s remarriage, Asamura Yuuta ends up getting a new stepsister, coincidentally the number one beauty of the school year, Ayase Saki. Having learned important values when it comes to man-woman relationships through the previous ones of their parents, they promise each other not to be too close, not to be too opposing, and to merely keep a vague and comfortable distance.

On one hand, Saki, who has worked in solitude for the sake of her family, doesn’t know how to properly rely on others, whereas Yuta is unsure of how to really treat her. Standing on fairly equal ground, these two slowly learn the comfortable sensation of living together.

Their relationship slowly evolves from being strangers the more the days pass. Eventually, this could end up in a story about love for all we know.

Osanai Wakaba, a fifth-grade boy, is in love with his homeroom teacher! To become a man worthy of his teacher, he pretends to be more mature than he really is! But his childhood friend, Wakanouchi Kai, begins teasing him after he reveals his feelings for his teacher. Kai has feelings for him too... and she's trying to catch is attention by flirting!

Thus begins a "double unrequited love" romcom, featuring a boy struggling against the seductive antics of his childhood friend!

Yachiru is a Hasshakusama youkai living in the human world. Because the prevailing public image of Hasshakusama is that they're lewd, her powers have weakened and her height has shrunk from its original 8 shaku (240 cm) to about 190 cm. She strives to correct that impression, but each day is another failure. However, while at the cinema to study horror films, she meets Seiichirou, a young man who is a huge fan of Hasshakusama. That's when Yachiru realizes that whenever Seiichirou praises her, her height returns to its original size...!!!

Nina had a rough start to life, stealing to survive—and eventually being sold into slavery by her own brother. But to her surprise, her captor, Prince Azure, ordained that she would live the life of a princess... specifically, that of the recently deceased princess-priestess, Alisha. But despite her changing fortune, Nina won't give up her old life without a fight... and Azure might just be the one to finally match her wits. But how much can she trust Azure? And can she stop the feelings budding in her heart, knowing she must eventually marry another...?

Note: Won the 46th Kodansha Manga Award for Best Shoujo Manga in 2022.

"If you were to disappear... I might just lose myself."

Arcs is reborn into the world of the wildly popular otome game Celestia Kingdom. He thought he was just a background character—until it's revealed he's actually the childhood friend of the final boss! Determined to avoid the bad ending, he throws himself into his daily life as her servant. But it seems the true cause of her descent into darkness is... her childhood friend!?

An unpredictable tale of master and servant, between a slightly (maybe more than slightly?) yandere heroine and an obliviously overpowered protagonist, begins...!

Tsuji Motochika is a guy who loves little girls. Yuna looks like a little girl, but she's actually older than Tsuji. Also, she likes much older men.

Together, they make an agreement to show each other's greatest desires - Tsuji's father and Yuna's little sister - and in the process, learn that age is only a number.

Nagi Shinonome, known as the "Ice Princess," is a beautiful girl with a cold attitude who does not allow others to get close to her. One day, Souta Minori, who saw her being molested on the train, saved her with all his courage, but the next day she appeared again and said, "I want you to stay by my side." Can Souta continue as friends with the Ice Princess, who only sweetly melts for one person in the world, that is, himself?

The manga will focus on the character Koharu Hidaka, who is a middle school teacher close to 30 years old in 2007.