From Storm in Heaven:
The first mouse appeared on the night of a full moon over two thousand years ago. A timeless children's song among the humans tells how it made powerful mice companions and legions of war mice. Then it declared war on all humankind. Pai'yan is on of the king's honored 7 heroes, renowned for his skill in fighting the mice. He comes home after a long campaign to find his young son kidnapped by the Magic Mouse, and his son's pet kitten Toraji transformed into a half-human cat mix. Now Pai'yan travels with Toraji, searching for any word that could lead them to the Magic Mouse and his missing son.

Follows the daily life of a professor and a robot girl in a post-apocalyptic setting.

Year 2055, 4 years after the events in Danball Senki W. LBXs have become the world's largest hobby, big enough for pro leagues to be established, and people to make their entire living off being an LBX player. 14-year-old Arata is a new transfer student at Kamui Daimon Integrated Academy on Kamui Island, near Japan. Known to be the most prestigious institution in the world for raising LBX players and mechanics, entrance to the academy requires an extremely competitive hurdle of being the champion of at least 3 official tournaments. Along with other members of his platoon, they face rivals and delve into the secrets lurking within the academy.

She was a tomboy... big emphasis on "WAS".

1-page illustrations created and posted by @macharge on twitter

Artist’s Pixiv: https://www.pixiv.net/member.php?id=614227
Artist’s Twitter: https://twitter.com/macharge

"Sex" made more familiar!

Health and physical education teacher Tsuji, who has doubts about modern sex education, attempts boldly to teach sex education to an audience of, among others, a girl who has a girlfriend, a girl who like BL, and a girl who simply likes cats.
"What is safe sex between girls?" "Positive masturbation?" "Why do sugar gliders (Petaurus breviceps) have vaginas?"
Beyond dirty jokes, but less than gravely serious, a sex education comedy!
Bright sex education begins with a heretical female teacher and female high schoolers!

Keitaro opened his front door one morning and suddenly transferred to a different world where demons and monsters live. Keitaro meets a young girl, Nia who is a half-demon. Nia urges Keitaro to "make a child" with her. Apparently, a half-demon woman can only have children with a human male...

Wi Suk-Hee works at a law firm along with her crush, attorney Kang Mino. However, a new employee Jung Yoon-hoo joins the firm and a love triangle relationship forms..

Aoyama Sousuke, a college student who suffers painfully from his parent’s traffic accident. He chanced on Shinoda Kozan - a Sumi-e artist at an exhibition. Then, Kozan was interested and surprisingly accepted him as his disciple. However, Kozan’s niece strongly disagrees and decidedly makes a bet for the “Kozan Award”. She wants to defeat Sousuke at any cost. Although he seemed uninterested in Sumi-e painting at first, he finally turned out to be attracted to it. He then gradually recovers his feeling by each stroke he draws...

Published in Bi-weekly Magazine, Evening for “Ore no Reiwa Project”

“That makes a grand total of 100 thousand dollars.”

After Tsukasa’s mom is killed in a car accident, her dad becomes addicted to drinking and gambling. One day, he disappears, leaving Tsukasa with a debt of 30 thousand dollars. There’s no way a student like Tsukasa could get her hands on that much money! Eventually, debt collector Reiko shows up, inviting herself into Tsukasa’s home and telling her to pay up. She offers the young girl a way of getting cash fast: by selling herself to Reiko. “Want to sell me your body?” Tsukasa agrees without really understanding what that entails, and when Reiko moves in with her, their relationship suddenly takes an unexpected turn…

Shibaki is a high-school boy whose only interest is girls. It's just that he's been branded as the greatest pervert at school and the girls avoid him like the plague.
One day he happens to find a book in the library about how to summon witches. He tries it as a joke, but it turns out to be the real thing. An apprentice witch named Rurumo grants his foolish wish for a high price. Shibaki ends up helping Rurumo and in return she refuses to take his soul. Doing so, Rurumo loses her position and puts her own life on the line.
Rurumo must complete the task of getting Shibaki to use 666 magic wishing tickets before she can become a witch again. However, every time ticket is used, Shibaki's life shortens.

Now, Shibaki has his own life on his hands. Make a lot of wishes and help Rurumo become a witch again or resist the temptation and try to live long life.

Haruka is in love with his best-friend Ryou who marries his sister. The day of the marriage he drinks too much and ends up staying in one of the room of the hotel where the receivement is done. In the night he is attacked and raped by someone who claims to hate him and that he'll never forgive him. Few days later at work he meets a new colleague and soon recognize in him his attacker. What is he doing here? What does he wants from him? Very good Manga, despite the general seriuos plot, can be even funny sometimes.

The past life died because of the imperial concubine, and he was born again in the high school era. It coincides with the recovery of the aura and the great changes in the world. When rejuvenating a teenager, he will follow the path of his journey, and he will protect his own friends. Loved ones. When he does not choose to stay, he will push him all the way.

From Fantasyshrine:

Five years ago in summer, Takuro's older brother, Kotaro, a high-school teacher, brought his student, Hiro, to Takuro's apartment. The three of them started living together happily.
Until one night, Takuro discovered that Kotaro and Hiro were actually lovers. Although he felt hurt, angry, and betrayed; Takuro realized he had also fallen in love with Hiro.
However, tragedy struck when Hiro's older brother, Reiichiro, finaly located Hiro...

Izumi Maya, a 33-year-old professional pastry chef, who went out to buy some mustard, gets caught in an accident. When she regains consciousness, she has been reincarnated as a 12-year-old princess! On top of that, she also has a husband who is older than herself! And a king, no less!
Maya realizes that she's in a position where her life might be targeted, thus, decides to try to get along with her husband to protect herself!
In the name of a pastry chef, I’ll defeat the criminal and my husband’s stomach at the same time!!

A humorous chronicle of the daily meeting-room problems of Yukio Tonegawa, who works as a middle manager for the whims of the evil, unreasonable business magnate Kazutaka Hyoudou.

In the summer her grandfather passed away, high school girl Kiyoi found herself abandoned. To protect her home, she decides to marry that man…!!

[from cotton candy scans]

A spin-off from the mega-hit “Totsuzen desu ga…”! You’ll meet Nana Ryuu, Asuka, and Kamiya again! Rika was dumped just before getting married. She thought her plan for the rest of her life was ruined… until she reunited with her ex-boyfriend from 6 years ago, Kamiya…? This volume also contains an extra story of Nana Ryuu and Asuka at the end of Kamiya’s spin-off!

Chapters:
Totsuzen desu ga, Kyou Ai ni Kite (First Half)
Totsuzen desu ga, Kyou Ai ni Kite (Second Half)
Lapis Lazuli Dawn (Oneshot)
Under the Covers (Oneshot)
Totsuzen desu ga, Ashita Kekkon Shimasu - Extra

Yuzu Okashi is a shut-in author living alone in neglected squalor. When the neighbor girl Makoto forgot her apartment key, Yuzu took her in until her mom got home. When Makoto saw the mess in Yuzu's apartment, she promised to take care of Yuzu like a mother should! (Anilist)

Set during the Keiou era of Japan. In the restlessness before the storm of revolution, the heir of a wealthy samurai family meets a beautiful young man.