Kuramoto Yuushi, 17, is going out with aloof and arrogant, Kuzuhara Shuuichirou, a 28-year-old novelist. However, Yuushi's tender age makes him doubt his place as a lover to this mature adult who never expresses his feelings… Fear, insecurity and jealousy will assail young and earnest Yuushi who chases after the years that separate him from the man he loves… But sometimes the most immature and desperately in love is not always the obvious one…

The sea in our world has been polluted. All sort of trash were thrown into the sea, making it unpleasant deep under the sea. One of the inhabitant of the sea, Ika Musume (Squid Girl) seeks to exact revenge on humanity for throwing trash into the sea. Clueless about the surface, she seeks to invade humanity alone, trying to rule over the world, only to find herself slaving away at one of the nearest beach-houses for breaking a side of its wall.

From ADV:
While most people her age are having fun, with little or no worries, Mi-Roo is stuck playing the role of student, homemaker and full-time babysitter to her siblings. With a mother who is gone more than half of the time, an overworked older sister who's a manhwa artist, and a lazy twin brother who serves only as a hindrance, Mi-Roo is trapped in a constant balancing act of housework and schoolwork. She's no superhero though, and it will take more than her undaunted determination to stay afloat!

Web Publication

"Progressive Rejuvenation Syndrome." This is an extremely rare disease causing the inflicted person to gradually become younger. The main character of this story, Munenori Agawa, is the only person that could save Rena Amami from this odd disease. Agawa's saliva is the only thing that can halt the disease from making Rena younger, so they must kiss everyday in order for her to survive. This causes an immense amount of conflict and drama between Agawa and his new girlfriend, Sayako Asou. This triangle relationship story tests the capabilities and limitations of human love.

Little bit special and inexperienced—
Kids grow up as they meet and fight each other.
The beginning of Park Hwi Jung's new School Life/Fantasy story.

The drama club of an all girl high school puts on the play "The Cherry Orchard" by Anton Chekhov.

Also includes an unrelated one-shot called Schoolgirl Princess.

In the beginning spring of high school life, "Sakono" Ikumi and "Sakono" Touma were utter strangers. The only coincidence is that they have the same family name and in the same class, but when they noticed the whole class had started to call them "husband and wife". This is a story of their love story in a husband and wife relationship, their youth days which lasted around two years and a bit.

A manga adaptation of the first Medarot game. Created by Horuma Rin, the artist for the game series.

The story follows Hikaru Agata and his medarot, Metabee's adventures.

From Entropy:

This is a set of one-shot stories of working people drawn from the viewpoint of Matsukata Hiroko, who is a 28-year-old single woman and is an editor of Weekly Magazine, JIDAI. She’s often at odds with Tanaka Kunio, a novice editor. Her work already stresses her out and he’s unapologetic about his own mistakes! Everyone refers to Hiroko as a masculine woman for how seriously she takes her work. She smokes too much, works too much, and never has sex. However, when it’s time to get a story done, she switches into “Working Man” mode where her testosterone in her blood increases, she works three times her normal speed, and all thoughts of life’s necessities disappear.

Takeo, the most unfortunate girl in the universe, pulls on her usual protective gear and goes to her first day at her new school. Having decided to give her parents some relief by living on her own, she ends up, due to a per-usually unfortunate housing mix-up, moving into an inn called Hyakkisou (the Manor of 100 Demons). The life of the young Takeo—or is it Take-woe?—will begin to change the day she sees the youkai... and vice versa.

Affectionately set in an everyday modern Japan with a Hellish war lurking in the background and high-school acceptance issues in the fore, the characters, setting, art and plot all make this story well worth crossing the threshold of Hyakkisou!

"Gisèle Alain will provide you with any service, Madame," Gisèle claims as she puts a sign on her door. Gisèle Alain is the owner of an apartment and decides to take on whatever request that she receives. She forces Eric, a resident of the apartment with overdue rent, to tag along with her service. Their first mission is to find a cat that another resident has lost and claims to have been missing for 3 days. Upon further investigation, they find a suspicious man taking away cats to an unknown alley. Gisèle decides to investigate further and finds out who the man is without any trouble. An amusing yet calm service providing you with anything you want; at your service by Gisèle Alain!

Nakamura Kouta is a freshman in high school who dislikes girls. One day he is visited by his childhood friend Karen, with whom he lost contact over time. Karen is a tomboyish girl, who refers to herself as "Boku" (a first person pronoun usually used by males). She asks him to help her become more feminine to win the affection of Itsuki-san, a colleague at her part-time job. Even though he is reluctant at first, he more or less voluntarily agrees to help her out in the end. But making a lady out of the clumsy Karen with nothing but his extensive galge experience as reference proves more difficult than he could imagine.

Ken has never been good with words. However, he learned to overcome his shyness when his classmate Takumasa approached him with an exchange diary. In high school, problems start to arise in Ken's and Takumasa's relationship as they face their feelings, future paths and possible separation.

*There is an extra about another couple that is still untranslated.

"It's a blessing that there is a person who listens to my story."
Not an ordinary, but an ordinary romance comic.

This webtoon focuses on Suwan, an ordinary high school girl that just cut ties with her two best friends. While feeling sad and alone under her frequent spot, the Tunnel of Tears, she befriends a blonde costumed gentleman (in a bunny suit) who listens to her troubles and comforts her. She also makes friends with a gal named Miel and her group, while continually doing what she can to comfort and help her friends just the same.

Apart from the fact he’s in the student council and has quite strange tastes, Shima is an average, low-profile, quiet high schooler. Therefore, he doesn't understand why Ryuunosuke, a sports student, always glares at him every time they cross paths. Shima doesn't want to draw the punk’s attention, but the instinctive hostility of Ryuunosuke towards him troubles him, and he wants to know why the other boy hates him…

Sia Lee is a modern vampire that absorbs the energy from touching a human's body instead of drinking the blood. Thankfully, she is a model with gorgeous looks, so she does not have any problems with having relationship with guys. However, Jiho Shin, whom Sia desperately wants to touch, has mysophobia.

From Stage Storm:

The story starts with a 5-year-old Lynn travelling with her Japanese mother to England to meet her father. On their way there Lynn and her mother get into a tragic car accident in which Lynn’s mother dies. After getting out of the hospital Lynn moves to live in a manor owned by her father who is an English nobleman. The motherless little girl tries to adjust to high society life and get the approval of her elder step sister, Sara, whose mother has also passed away. At first Sara seems cold and distant towards her new younger sister, because she fears that Lynn’s open and cheerful personality will win over the attention of their father as well as the handsome young man who lives nearby, but...

A story about a boy who is able to talk to the Gods.

Nostradamus prophesied that the world would end in the seventh month of 1999. Today is July 21st, 1999. Ever since she was little, Maruyama Sakura has put her faith in this prophecy, has believed she will die at age 19. Consequently, nothing has seemed all that important to her. As the final days of her final month tick down, Sakura is whiling away the last of her time. Then Sakura meets Mori. Sakura has ten days until the end of the world.