1-3) Love Seminar
Shigeta Maki is stuck with the hardest lesson of his life. Being so much in love and with the object of his affections, Professor Onodera, so far out of reach, he has no idea what to do. Lucky for him there's someone to show him the way: Yoshioka, sex expert and delinquent tenant of the apartment complex Maki lives in and helps run. Will love lessons help Maki snag his unrequited love? Or will he find a new goal to shoot for?

4) Koishitara Mermaid
When school and family pressure becomes too much for Hirose Misaki he jumps off a cliff! He's rescued by an eccentric fisherman Kaidou Youichi and before he knows it, Misaki's stranded in the middle of the ocean with a crazy man who thinks he's a mermaid!

5) Mr. Bear of the Forest
Six months ago Jou got lost on a mountain and was rescued by Ooguma-san, an unfriendly woodsman who lives there. So why is Jou back for a visit?

From myobi:

China, early Song Dynasty.

The setting is an era of absolute corruption, when bribery, torture, and threats were the normal way of doing business in the government. Then comes forth a young, new Official - Houjou - who challenges the corruption. Gifted by the Emperor with three beheading devices, he is charged with bringing justice back to the courts.

Based on the historical figure of Justice Bao (Chinese reading of the name), who was said to be an incorruptible official, this is a light-hearted romp through ancient China as he and his assistants work against the corruption that has become the norm in the Imperial Courts.

For more on the historical person and legends surrounding him, see:
http://en.wikipedia.org/wiki/Bao_Gong

Sakura (a down-to-earth chick), Akane (a loli), and Yuriko (an otaku) have been friends ever since they met in high school. They all wanted to become teachers and now that they've grown up somehow agreed on living together. The story depicts their lives as teachers.

The best way to express oneself... created by the humanity is...Dance!

Yoo Myung-in, who never stood out, now goes on stage!

Daum Webtoon (Daum) Original webtoon (Korean webcomic)

Onoda Nina is a 1st year student of her high school. She has a serious crush on her senpai, the handsome and kind Atsuhito Ogi. Ogi is the president of the ESP (Extra Sensory Perception) club, and only to win his heart she joins the club.

Turns out she has a tough rival, her senpai, Okada Ida who is a beauty and the idol of the school. Ida likes Ogi too and will never let Nina has his way with him. Soon they all find out that Nina actually possesses a powerful ESP, and this makes Ogi pays a lot of attention to her, much to her delight and Ida's distress.

Thus begins the adventure of Nina and her friends in ESP club, and of course her 'battles' with Ida to win Ogi.

From Half-Baked Scanlations:

Ririko, a stylish Charisma Gal from Shibuya, finds herself playing amateur detective after an unexpected turn of events. She is keen to solve cases to prove herself worthy of elite police detective Nii, a man she adores and regards as her fiancé, but her enthusiasm leads her into a whole lot of trouble.

From Viz:
The business of Death is never done. Asato Tsuzuki works as a Shinigami, or "Guardian of Death," in the Ministry of Hades. It's his duty to make sure that the souls of the dead reach the afterlife, but contrary ghosts and humanity's evils keep getting in the way of a job well done. With all these problem assignments, will he ever get a bonus... or will he be stuck paying back damages for all eternity?

Shogi, also known as Japanese chess, is one of the most popular board games in this school and a way for school gangs to challenge and bully others. Yuuki is the boy that gets bullied most of the time and he never won once in fighting. While the bully is running after Yuuki, he got both of them in trouble as he messed up with the violent Shogi Club. Now they are forced to duel in Shogi and the loser will be beatened up. Yuuki's Shogi adventure sets off from here. Will he be able to defeat the bully and take his revenge back?

From CMX:
To seek a quieter and happier life as an ordinary high school girl, Tsubura's just moved from a big city to her grandmother's house in the countryside. On the first day at her new school, she gets through an awkward introduction to her class, when, an errant baseball shatters the window from outside. To everyone's surprise, Tsubura leaps into action, catching it and whipping it into the mitt of the pitcher below. Her rather acrobatic catch-and-throw makes boy students get down on their hands and knees and beg Tsubura to join their school's baseball team. Although the boys have tried to get into the division championships, the team is too weak. For Tsubura, baseball is exactly what she wanted to avoid, so she flat out refuses to join the team. Will Tsubura bow to peer pressure and ultimately take the pitcher's mound?

1-6. Sere♥Kano
Katsuragi's beloved grandpa recently died from a stroke. After his grandpa's death, Katsuragi is contacted by the family at the estate where his grandpa worked as a butler. The family asks him to work there as a butler to replace his grandpa. It turns out, his grandpa was the caretaker of the daughter, who is the same age as Katsuragi, so he will now be in charge of taking care of her. When he is asked to take a bunch of boxes to her room, he walks in on her masturbating. How will she react?

7-8. Swim Girl
9-10. Exploit Me
11. Stick It In Miko

Koharu is solo again, so her friends drag her out to get hammered and talk about their relationships.

Source: Yuri Project

Miyoshi Yoshimune (nickname: Yoshi-Yoshi) just moved to Ikebukuro because of his parents’ work. While exploring his new town with his classmates, Mikado, Anri, and Kida, he hears rumors about “The Headless Rider” and “Color Gangs.” While chasing after these rumors, he gets dragged into a conspiracy involving the whole of Ikebukuro…

Adapted from the PSP game of the same name focusing on a new original character.

Combining some of the early works of Adachi Mitsuru, these books include the two stories Hatsukoi Koshien and Nakimushi Koushien, respectively covering two and four volumes. Both are focused on baseball youth and the desire to reach Koushien, the famous stage of the high-school baseball national championships. Volume seven and the end of Volume six contain a selection of short stories.

Volumes 1-2:
- Hatsukoi Koshien, Parts 1-2, + 10 page omake

Volumes 3-5:
- Nakimushi Koshien, Parts 1-3

Volume 6:
- Nakimushi Koshien, Part 4
- Ace Futari
- Ken

Volume 7:
- Seishun Icchokusen
- Aozora Tsurete Teruteru Bouzu
- Kitakaze Karakara

From Aerandria Scans:

Endou Kana is a cheerful school girl who has a secret crush on... the mayor, Minato Kouichi, a perfect gentleman and well-liked leader of the post-war town. With the help of her friend Akira, she investigates him, until the trail leads her to an abandoned-looking house where a strange and scary foreigner lives. He and Kouichi seem to have some kind of relationship, but what is it? Kana's and Akira's take on that question are completely different and there's still a chance both of them are wrong!

Spin-off of JoJo's Bizarre Adventure Part 3: Stardust Crusaders. Gives an inside look on Oingo and Boingo's way to kill the Crusaders.

Litong wishes to get into a relationship with his neighbour, Yijie, but Yijie treats Litong like a servant! He doesn't know what to do, and is in distress. What'll happen next?

Seito Shokun follows the life of Kitashiro Naoko, nicknamed Nakki, as she plows through life with her friends and family. Faced with hardships and struggle, happiness, sadness, love and tragedy... Nakki paces forth! A manga classic!

Won the 2nd Kodansha Manga Award for Shoujo in 1978.

From Shoujo Manga Maniac:

Lin is an average high school girl who has a huge crush on Daiwen, a popular TV host. Super Pop singer Gonjieh, who is Daiwen's enemy, transferred 6 months ago to Mushroom College. Phoebe and Jia are Lin's best friends and luckily end up in the same class. Unfortunately for them, Lienze, the no.1 delinquent in her school and who scares the living daylights out of Lin, also happens to be in her class. To make things worse, Lin's uncle appears, who she says is the root of all trouble. How will Lin survive?

Oneshot from NisiOisin and Kawada Yuuya:

A boy suddenly wakes up to find out he's in the body of a high School girl. Who is she and how did he switch bodies?

From Paradise Love Scanlations:

Although they're brothers.Their appearance, personality are completely the contrary!!
Suddenly one day, these two completely different brothers switched souls!? After possessing his cute, girly little brother's body, the hard days of the tough big brother begins.