A gyaru named Serina is reincarnated into the world of an otome game as a background character who is sold off by her family and now works as the exclusive maid of the game's villainess Almelia. Yuri romcom hijinks ensue.

Spin-Off of CRIMSONS - Akai Koukaishatachi

The series, set in Saitama, follows the story of Ren Mihashi. Mihashi was the previous ace pitcher in his middle school's baseball team, but it seems that he only got the position because his grandfather was the owner of the school. His teammates (especially the team's catcher, Hatake) hated him, and they always lost their games. Mihashi is thoroughly convinced that he is a lousy baseball pitcher, and feels guilty because he believes that he is responsible for all the losses. Mihashi graduates through middle school with extremely low self-esteem. But in truth Mihashi is really a hardworking and skillful pitcher, and the main reason why his team always lost all the games is because of bad cooperation, because his teammates never talked about the game with him, and they did not try to come up with a plan or strategy to fight against their rivals. Mihashi then transfers to Nishiura High School with plans of quitting baseball because he thinks he is not good enough to succeed at it, though he still loves the game deeply. However, he is dragged into Nishiura's baseball team by their coach, Momoe, while watching the team training outside the field. Assisted by his new teammates (and especially the catcher, Takaya Abe), he grows in stature, confidence and skill, helping his team excel with his own abilities.

Won the Kodansha Manga Award for general manga in 2007. Won the Creative Award at 10th Tezuka Osamu Cultural Prize in 2006.

From Panda Scans:

Sanjou Arashi is a serious and reliable second-year high-school student working part-time at a detective agency. Her boss is a gambling, irresponsible, tobacco smelling oji-san. The pair are complete opposites, but this is the story of a scruffy oji-san X high-school girl romantic comedy!

Tenma Gabriel White graduates Angel College as top of the class and is sent down to earth, along with her classmate Angels to study Humans as a High School student to learn how to better lead them down a righteous path.
At least that is how it should have gone down. Instead Gabriel got addicted to video games and junk food. She even tries to skip school. A failure of an Angel.
Luckliy her Angel-like Demon friend Vignette April Tsukinose helps keeping her on track. Especially by remarking that No-Good Angels get deported back to Heaven. A fate Gabriel wants to avoid because she thinks that her lazy self is her true self, and because Heaven is now too boring for her.
At school Vignette's Demon buddy Satanichia McDowell Kurumizawa causes mischief from time to time. She is egged on by an Angel named Raphiel Ainsworth Shiraha (2nd-best in class after Gabriel) who has slight Sadistic tendencies towards Satanichia.
From time to time Gabriel's shy Angel-underclassmen Tapris Sugarbell Chisaki pays her school a visit.

A lazy Angel, an Angel-like Demon and her pompous Demon-buddy Satanichia and Satanichia sadistic Angel "follower" in one High school.

Hijinks ensue.

Alexander, whose hometown was destroyed by the demon race, fought with the Demon King and was killed. But instead of the afterlife welcoming him, when he opened his eyes, he was reborn as the Demon King's son, Jilbagias!? While hiding his true identity, he stains his hands with atrocities as he conducts himself as the ideal demon prince, increasing his power to ultimately overthrow the Demon Kingdom...

Saku Kanakura was a boy born into a poor household. He studied hard and managed to pass the exam to an excellent high school but, it soon turned out that his parents were in debt! When it was time to pay the debt off, a mysterious gal appeared and offered to pay off their debt. A big burden was almost off Kanakura's head, but the gal made a condition in return which stated that—

Among the various realms, is the manliest and most handsome evil god in history! The peerless and handsome Xie Yan crosses over and falls into the vixen's lair. In order not to be drained of his entire life-force, he travels between various realms, cuts down a son of god, and repels an invading union hailing from across the ocean… This is the story of how he eventually becomes an evil god.

Ahyoung is the director of a down-on-its-luck animal hospital. Pragmatic, blunt, and single, this 30-year-old veterinarian is determined to succeed! But she is barely able to make ends meet... that is until a mythical creature makes its way to her hospital. With the help of her talking cat, her softie werewolf assistant, and her chipper dragon friend, she is committed to treating all fantastical beasts that make their way to her door. It can’t be that hard… right?

Kamihate Uryuu, orphaned since childhood, receives an invitation to stay at the local Shinto shrine. All he wanted was a quiet place to study so that he can fulfill his dream of making it into a top medical school, but after arriving there, he comes across three beautiful shrine maiden sisters... and the head priest requests that he marry one of them and take over the shrine. A tale of love and miracles is about to unfold!

Written by the assistant of Negi Haruba, the author of 5Toubun no Hanayome, who recommends this work.
(Full serialization confirmed on author's twitter).

An otaku’s idol moves right next to him. And it’s a dream come true! But as it turns out, she’s a bit more sadistic than expected. Are you seeing a trend here? There's no mercy. Submit to the bully girl of your dreams now.

Another short twitter manga… Featuring another "boy meets girl" at school setting…
**BUT WHAT COULD BE THE TWIST IN HERE?**

From Viz:
Her mother was a wrestling champion, her father a lightweight world boxing champion, her grandfather the first Japanese to become the world champion of Muay Thai kick boxing--but high school girl Elle doesn't want to fight! She just wants a normal life, but is it possible with such a violent family history?

*Also contains two other oneshots in volume 3:
• Nandemo Ari sa (Anything Goes)
• Hibari Telepathy: Hibari Kataoka is a tomboyish girl in love with the hottest MVP basketball player Sora Migumo but they don't seems to get along well.

Shinomiya-san was reincarnated to a noble family after being hit by a truck. On his 10th birthday it was found out that he didn't have any skill so he was kicked out of the house.

Takatsukasa Hikaru ends up under the care of a young calligrapher, Kuzukiri Kiyomizu, after her father dies.

It started as a oneshot. Started serialization in Lala issue May 2020.

“Listen up, right now, there's a super important and urgent question! ...Am I cute?”

Chiba and Sheina, a pair of single, otaku males in their 30s that met during a highschool reunion!
Shortly after hitting it off with each other, they're thrown into one misfortune after another, and before they know it... They got reincarnated in an Isekai as pretty babes!

As an incoming freshman, Chiken Sana chose to attend Minowa Sougou High School for its flexible school policies and also because her “eye candy” - Ugou Kanato - is rumored to be a student there. When she finally meets him due to a series of coincidences, she gets pulled into something unexpected…?!

What will happen next in this ultra fast-paced love comedy?!

Yotsuya Yuusuke along with his classmates Shindou Lu and Hakozaki Kusue have been transported to a strange and unknown world inhabited by mythological creatures. As soon as they arrive, they meet somebody calling himself the Game Master who then grants them a time-limited quest. To aid them in this quest, he also bestows Shindou and Hakozaki with the roles of a Magician and a Warrior while Yotsuya is randomly granted the role of... a Farmer?! This is how a hectic life of adventuring began for three students who now have no choice but to complete random quests for several phases in the fantasy world if they want to stay alive and protect the real world from the demons and monsters they encounter.

Hello, boys and girls!
Do you like guys with more than one side to them?
Omota Uramichi, 31 years old, stars as a gymnastics teacher on the educational TV program "Together with Mama."
He might be sweet, but all boys and girls are inevitably scared off whenever they get a glimpse of the adult darkness that's the result of "Mister Uramichi's" emotional instability...?!

This is a tragic eulogy to all the "boys and girls" who are now adults!

“…Fueh? W-What is it?”

When the shut-in girl Terakomari, or Komari for short, woke up from her slumber, she had been appointed as a commander! And if that wasn’t enough, the corps she holds responsibility over is known for overthrowing and murdering their superiors! Even though she had been born into a prestigious vampire family, because she can’t drink any blood, she possesses close to no athletic or physical abilities, she’s rather small for her age, and she can’t even use any magic.

Met with endless despair, her trusted (?) maid Vill comes to the rescue.

“Please leave it to me, Komari-sama. I will definitely make sure you won’t be found out!”

Thus begins the comical fantasy portraying Komari’s struggles. She’s a shut-in, but she can actually do it if she puts her mind to it!?

The Popular Novel is now in Manga form!