From Stiletto Heels Scans:

Maya, who works as a translator, lives with her bisexual former girlfriend, Michiru, and Michiru's son, Yuuta. Residing in the same apartment building is an actor called Nico, who drops by for a visit almost everyday, and knows about Michiru's past. Somewhat like family, and somewhat not, their lives interweave full of warm days.

She was supposed to break the love flag, but… she ends up having feelings for him!?
This is the start of an unexpected romantic comedy♪

Mariko Kanzaki, a single office lady around her thirties, apparently got reincarnated in the world of her favorite maiden game as Cecilia, a villain (a death confirmed character)!!
Only death penalty awaits her at this rate…!
In order to change her destiny, she planned to break off her engagement with Prince Kaiser (a scheming man) but, unexpectedly, she started liking him after he told her: “This is the first time I met someone like you.”!?
Moreover, protagonists with strong personalities started courting her one after the other…?
Enjoy this unexpected romantic comedy!!

Jealousy, fear, and love...where does it all lead? Let Satonaka Machiko take you on a journey into the true heart of women in this sometimes dark, sometimes comedic short story collection!

Catriona Julie Grande, a marquis' daughter, was the Crown Prince’s fiancee. She was executed under false charges but went back in time. All she wanted was to live her life peacefully and prevent the same tragic fate from occurring again. But one day, the Prince appears in her life again and everything begins to fall apart. She has no idea what to do.

A collection of short stories involving many different couples and their sex life. Their everyday situations are told with humor and fun.

A prequel of the anime series Macross Δ focused on Keith and Windermere. Takes place 9 years prior to the events in the anime.

24-year-old Mitsuki is a proper, yet cute company worker who has dated plenty of guys.
However, when her boyfriends pat her on the head, caress her cheeks, and say heart-racing lines, she ends up shuddering at these heart-pounding actions instead…!
Unable to enjoy the “ordinary happinesses of women” and unable to date anyone for long, Mitsuki reached the age of 24…

“This next relationship will be the end of that!” Declaring as much, Mitsuki started going out with her current boyfriend, the handsome 28-year-old elite company worker, Shinomiya.　

Encountering this perfect young man, however, awakened Mitsuki’s previously hidden nature…

From CoyoMoose:

The world that was once supported by four evil Gods has fallen to a crisis. Using song and dance, it is up to the kashikans to bring back the Gods which fled from their confinement.

Ruri, a college student working part time at a convenience story, finds herself drawn to Nosegawa, a middle-aged customer who comes in every day to buy two packs of cigarettes. When she works up the nerve to ask him for a ride home one rainy day, their interaction in the car kindles something in Ruri's heart - a strange and unknown new heat...

Berta’s marriage was suddenly arranged, she will become the second consort of the King. The current royal family values lineage above all else, with several generations of consanguineous marriages, to preserve its “purity.” The politics of the Kingdom, following the idea of the pureblood noblemen’s superiority, caused national power to decline. To retain the power of the Kingdom, the Royal Family decided to take a desperate measure, a marriage with a woman from the ethnic group to which belongs the majority of the population. The bitterness of this act… Those who were previously considered a subjugated group of people living on the frontiers.

The chosen bride is Berta, the first daughter of the current lord of Kasha, the largest estate on the frontier and also a powerful faction. The marriage life started in hard mode, a husband that doesn’t love her, a Queen that hates her, however, she still is forced to fulfil her role duties. Berta has decided to endure the hardship, that was already expected by her, and wait for the day when there’s no more need of her in the palace, and she can return home. However, Berta’s initial plans are ruined by an unexpected situation. After passing three nights with the King, as the royal rules dictated for a newlywed bride, Berta got pregnant with His Majesty’s child!!

An autobiographical manga about Itagaki Paru, her two older sisters, mother, and father.

Due to a mistake one night, I became the target of the most obsessive man and a villainess!

After possessing Ripley, a count’s daughter and an extra in a novel, I became the female lead. Since this is the case, I will try to enjoy the riches and luxuries of a nobleman that I couldn’t experience in my past life.

I can remember up to drinking alone in a corner at a party… but I woke up the next day in the male lead’s bed!

Ripley became the target of the villainess after the male lead’s remarks that she should be responsible for spending their first night together. Knowing the fate of the female lead, Ripley tries to get rid of the male lead by causing trouble, not washing, and all sorts of things. Nevertheless, the male lead’s unwavering single-minded heart begins to shake.

Based on the webnovel written by HWANG DoTol with insert art by MSG

From JManga:

Shio Asami, the wealthy daughter of a famous, deceased opera singer, aims to follow the same path as her mother. Moe Midorikawa, a young woman working several part-time jobs, dreams of becoming an opera singer as well. What will happen when these two meet?!

All her life, Chihaya's dream was to see her model sister become Japan's best... That is, until a quiet, unassuming transfer student named Arata tells her otherwise. A dream, he explains to her, is something she needs to work at herself.
Arata plays a competitive version of a traditional Japanese card game, known as Hyakunin Isshu, in a way Chihaya has never seen before. After taking Arata's place in a game, Chihaya discovers she has a passion for it. Now Chihaya wants to become number one in the world, the Queen of Karuta.

Note: Won the 2nd Manga Taisho Award and the 35th annual Kodansha Manga Award for Best Shoujo.
Was nominated for the 20th Tezuka Osamu Cultural Prize in 2016.

From Midnight Scans:

Ogawa Maho is a young, fresh teacher who just arrived in Tokyo to take on a new teaching position at a high school there. Things don’t go as she planned, however, when she breaks up with her boyfriend whom she had been dating for 6 years. Distraught over her breakup, Maho has a one-night stand with a guy she meets on the street. The encounter was memorable and manages to cheer Maho up enough so that she can face her new job and move on with her life. Of course she is shocked when she discovers that the random guy she spent the night with happens to be one of the students in her new class!

Contains the following one shots:
ch. 4: Currently Indulging In Love
Fukami Tadashi-san's twin brother, Katsura (who's nothing like his brother), has already investigated his brother's date and he has decided she is inappropriate for him. They break it off, but Tadashi is depressed so Katsura finds her again and begs her to get back together with his brother. What's going to happen?

ch. 4.5: Come Over To My House (Christmas Special)
Akiyama Riho's parents have passed away and she is currently living with the Suga family. She is dating the second son of the family but her love life there is full of obstacles..

ch. 9: Touching Lies With Lips
Nishihara Kimi's father is accused and arrested for a crime he did not do. She goes looking for a lawyer and Ehara Shirou, her ex-boyfriend, is the one she finds most capable to handle the case. He is an expensive lawyer but she's willing to do anything...

ch. 10 (not translated): I won't let you sleep tonight!

From Stiletto Heels:
Yukari was enjoying her single life until her elder twin sister, Ayaka, suddenly pays her a visit with a young man in tow, to ask for some strange advice! This is a story about a set of mismatched twins.

Living the high school life, being admired by all the other species in his school, Rurikawa (Wolf. Alpha. Male.) meets a lower species, Kyougokuin (Rabbit. Beta. Male.) As soon as their eyes meet, Rurikawa thinks, "I want to breed this beautiful creature." He's suddenly unable to control his urges as he's turned on. In a world where men can also become pregnant, this series tells the story of high school boys being led around by their instincts and fate.

Nishi Uko's Collectors is about two women in a relationship who disapprove of each other's spending habits.

Translated Official description:
During elementary school, it was competitive karuta that Arata, Chihaya, and Taichi were tied together with a strong bond––the new trio. Arata went to a different middle school returning to Fukui, while Taichi attended a prestigious school that's hard to get into. Even when they're all scattered apart, Chihaya continues playing karuta alone. However, Taichi said he "stopped playing karuta"––––.
Delicately swaying, a fully spirited middle schooler Chihaya and the others presents a new spinoff comic!


MangaUpdates Description:
"If we continue karuta, we'll definitely meet again." With that promise to the distant Arata in their hearts, Chihaya and Taichi enter middle school. Chihaya tries to find friends to play karuta with her, but her effort is fruitless. Taichi realizes his limits at Kaimeisei Middle School, where only prodigies gather, and loses his fervour for karuta. The distance between Chihaya and Taichi slowly grows...
Important Note: The manga-ka (Artist) of this spinoff series, 遠田 おと is credited as TOODA Oto on MangaUpdates, but credited as Onda Oto on CDJapan.
The artists's Twitter: @10da010: https://twitter.com/@10da010

From Viz:
In order to help her father, Chiwa Takanashi agrees to an arranged marriage with the company president Hokuto Mamiya – a man she doesn’t know – at the request of Hokuto’s grandfather. Chiwa believes the arrangement isn’t binding, but her new partner seems to think otherwise. Can two strangers living together find their way to a happy marriage?!