Loletta is a bride-to-be from a tiny island nation. In order to ensure the welfare of her adopted family, she decides to marry a rich man she doesn’t love. In preparation for the marriage, a mysterious man who calls himself Kuzu shows up, claiming that her dead brother gave him his heart on the condition that he fulfills a promise made to his beloved little sister. Upon hearing this, what is Loletta supposed to do?

Nicknamed “The Prude,” Aizome Maiko is a misunderstood girl who actually has explicit fantasies. When a boy with a delinquent’s face, Yajima Keisuke, ruins her dream romantic encounter, she forces him into slavery by getting him to carry out her ridiculous plan to reach the man of her dreams. What has “The Prude” have in store for Yajima and will her ridiculous plan succeed?

Fourth spin-off of Papa no Iukoto wo Kikinasai! (http://www.mangadeer.com/search?q=papa-no-iukoto-wo-kikinasai), in which Hina is the protagonist. Between all the spin-off, this one is the more cute, akin to Love so Life.

The younger of three sisters, Hina Takanashi, is an energetic and good-natured 3 year old. The three sisters lost their parents in a plane accident. They now live with their 19-year old uncle, who is struggling to keep the family united and happy... and little Hina brings her happy mood to brighten the darker days. This spin-off story is parallel to the main series.

A collection of short stories:

1 Junjou Erotica (Pure Erotica)
Heartbroken by her first love, senior high year 2 student Rika develops a fear of romance. One day, she finds out her first love's weak point! From then on, she starts her revenge...

Extra: Passionate Erotica (unscanlated)

2 Renai Teppen Shugi (Romance Summit Principle)
The two most popular people in school, Rinko and Shirou, are pretending to be a couple to keep people from confessing to them. Rinko is slowly falling in love with Shirou, so what happens when someone finds out about their fake relationship?

3 Romeo na Kanojo (My Girlfriend Is Romeo)
Seiya was the prince of his school until a new girl, Ryou, transferred in. "If I can't win against her, my only other option is to make her fall for me!"

4 Ouji to Kiss to Nemurihime (Prince & Kiss & Sleeping Beauty)
Shiya has a phobia with boys. What can she do, but ask the almighty ?prince? of the school for help? The prince is shocked that this girl doesn?t like him, and decides to make her fall in love with him! But Shiya has a weird curse: every time a boy touches her, she faints!

From Evil Flowers:

Kurosu Riri is very bored with her school life. In an attempt to do something new she tries to form a band with Ayata and Jin. But something is still missing, a former member, Ruki Sugisaki is needed in order to have the complete band. The only problem is that he's in a fight with Ayata. Will Riri be able to make things work for her band and make Ruki join? Better yet, to have it formed before it falls apart...

From Adachi's Universe:

Slow Step follow the adventures of school girl Minatsu as she looks for a man and tries to stay on top at school. She's got the school bully to worry about, two potential suitors, a pervert for a PE teacher, and a gang of criminals in hot pursuit.

Manga adaptation of the (in)famous dating bird game.

From An Endless Story:
7 years ago she received a goldfish at a summer festival. The goldfish is named after her beloved Jin. But Jin, her childhood friend, will be leaving home. At the time, those words were uttered unexpectedly...

From Simple Scans:
Volume consists of five separate story lines + sidestory:
愛し金魚
real intention
星のロマン
LIFE IS WHITE...?
YOUR VOICE
巻末描きおろしショ－ト (sidestory)

Nakano Fudanshi Gakuen is a school renowned for its sports program, yet only has an average school rating of 50! Within the school, there is a club on the verge of losing its official status called "Fudanjuku". The club's theme is, to put it simply, "anything-goes". This story is a slapstick school comedy revolving around the unique seven members and their various troubles.

From the manga Lovely Complex here we watch Koizumi Takuto (Koizumi Risa's younger brother) first year of high school as he takes on the adventures of his life. What will happen here..?

Because of their parent's remarriage, high school student Satou Yuka, suddenly finds herself living together with her stepbrother, 23-year-old high school teacher Satou Taichi. Actually, their parents have not registered their marrriage and therefore they aren't even siblings by law; but since both parents aren't around, they end up living together! Taichi who has a very serious case of sister complex, wishes for Yuka to call him "onii-chan". But Yuka's reaction is very cold?

* Contains the short stories titled Private Princess, Chocolate Impact, Hot Chocolate, and Face of Fake as extras in each volume scanlated thus far. (Private Princess=vol.1, etc.)

Kid x Box has yet to be translated.

From JShoujo Scans: Hana is a 16-year-old girl who's a bit of a tomboy. She gets dumped by her boyfriend when she moves to Sapporo after her parent's divorce. On her first night there, she comes across a young guy who is seemingly too ill to walk. He ends up collapsing on her and is quickly rushed to the hospital. As it turns out, he's her next door neighbor, Shindou Hiroto. The next day, when she goes to her new school for the first time, she finds out that he's actually a teacher and that he's the teacher of her class! With his out-going personality and friendly demeanor, he gets along with everyone, but she notices there's something a little different going on between him and Nishiwaki, a classmate of hers whom the others write off as a "cold-hearted beauty." Hana always runs into him on her way to school, and as she gets to know him more, she finds herself falling for him! Things get even more messy when her boyfriend who broke up with her comes to Sapporo saying that he wants to give their relationship another shot!

From ShoujoMagic:
The two high school girls, Hanazono Mito and Tatsuda Seshiru, have been friends since kindergarten. But while Seshiru is an honour role student, Mito is constantly breaking school rules.

One day, Mito helps Seshiru evade the advances of the arrogant Ran, a rich boy and model who mistakes Mito's interference for jealousy (because of course every woman wants Ran for herself! Yeah, right). This lands Mito in hot water with Ran's fangirls, who later gang up to kick her ass! A new transfer student with wild hair is the one who saves her, but he won't tell Mito his name...!?

A one-shot collab between Hatta Ayuko (Ookami Shoujo to Kuro Ouji) and Mizuno Minami (Nijiro Days). Sata Kyouya is the school’s guidance counselor and he has to deal with an odd group of students.

From Chibi Manga:

Kaji, Yuzuha's unrequited love, is a good friend of her twin brother Suguru. He's the same age but goes to a different school and since elementary school, he's been going in and out of Yuzuha's home. She's been in love with him all this time, but can't make a serious face when around Kaji. Now they both change to the same high school and there's the chance to decrease the distance between Kaji and her...?!

From The Zero Alliance:

In the midst of a battle against heroes, the demon king, Rou is transported to a different world, where he ends up as a high school transfer student. When his classmate, Hitose discovers his true identity, she tells Rou that she wants to help him get back home. Although Rou thinks of Hitose as annoying and strange at first, they manage to form a friendship.

Note: Original language image is unavailable without a watermark.

Two high school girls are complete enemies, and they both are in their own gangs. They fight each other all the time, and to get even with the other, one girl tries to kidnap the other's boyfriend. But the information her right-hand girl gives her is wrong, and they kidnap some really good-looking guy who is NOT the boyfriend of the other girl. You know what happens. They fall in love.

Side story: Photogenic
Photogenic centers around the girl in question, who has gone to cram school every day of her school life, finds a photo of an amazingly cute guy, and imagines what it would be like to be his girlfriend, instead of being one of the smartest girls in Korea.

Compilation of short stories:

1) Samurai Darling
Amiko saw a boy dressed like a samurai at a school festival. What will she do?

2) Toumei Shoujo (Lucid Girl)
Yuki rejects a present from his childhood friend Risa, but something happens and he sees things from a different point of view.

3) Some Kind of Childhood
Rika doesn't understand the point of kissing. Will she change her mind?

Kiyora is a bored student at St. Joanna all-girls school. Using one of the books her father sent to her, she unleashes a demon, and then begins to investigate the disappearance stray cats from the school's campus in the hopes of unmasking the virtuous priest, Father Shion.