From Aerandria Scans:
Souta, who's attending a confectionary school, is in a relationship with Saeko, a girl one year older than him. He fell in love at first sight with her four years ago, and right before Christmas last year, they finally had their first kiss. Because his girlfriend really loves chocolate, every day, Souta tries to polish his chocolate-making skills. Even when his girlfriend smells like cigarettes although she doesn't smoke, even when she turns down his invitation to a date on Valentine's day, he's still not broken-hearted at all, and he still continues to love her.

Note: Won the 2012 Kodansha Manga Awards in the Shoujo category and was nominated for the 4th Manga Taisho Awards in 2011.

There was a youth who lived deep inside a Forest, his name was Yuri.

After he trained his body for long, he achieved a special trait which made his body able to withstand almost every kind of magic.

One day, there was a beautiful elf named Firia, who got lost and arrived at his house.

Yuri, who was attracted to see the world, together with Firia, they set out on a journey around the world.

“Yuri-san, can you use magic?”

“Of course I can. It’s called muscle magic.”

“…what, is that?”

“In exchange of magical energy, I use my muscles to emit a powerful magic.”

“That isn’t magic but simply a feat of strength.”

This is the tale of a youth who chose to polish his muscles and journey around the world together with a peerless beautiful elf.

Mei and Tomohisa are a young live-in couple who were high school sweethearts. Many of their daily situations elicit déjà vu for them, but there has been an uninterrupted constant from those halcyon days: their love for each other.

Author's Twitter: https://twitter.com/Yotsuba_Mikuni

From JustBLThings:

Photography club member Yano received an unexpected confession from upperclassman Akutsu, the handsome but often oblivious school charmer. But Akutsu, having confessed, continues to treat Yano just as he did before. Akutsu's easy acceptance of all confessions towards him, coupled with him treating his own confession of love to Yano as a thing of the past, confuses Yano. Yano becomes more and more aware of Akutsu and also increasingly anxious...

From Yen Press:

Shinji Souda's not exactly happy about his family's age-old marriage customs, namely the fact that he has to marry a boy! Will a sudden confession from his bride-to-be, a beautiful boy in his class named Aoi, make Shinji change his mind? This sweet love story follows the couple through their marriage ceremony, wedding night, life as newlyweds, and even childbirth! The title story in this compilation is the prequel to Mr. Flower Groom, also being published by Yen Press.

Sayo is a "modern" and uninhibited woman whose greatest passion, however, is her work. Her workaholics ended up removing all the men with whom she had a relationship, who complained about how much Sayo was "married" to her work. One day, a new employee starts working in her company; Ryouichi Kiriyama seems different from any other man she has ever met, but she still doesn't know that underneath Kiriyama's facade, he hides something else...

After returning from work and being detained by the police, Sasaki, he meets a white snake in the rooftop garden. What He does not know is that it is his boss and president of the company in which he works.

Kusanagi, the president, however reveals his identity after biting Sasaki, declaring that he will be with whom he will have his children.

Mishe, a strong willed girl raised from poverty, has caught Prince Kallum's attention. Attention as in "you will become one of my concubines" - thus begins Mishe's adventures into Prince Kallum's world.

It’s a story about a young Japanese boy who gets sent to another world. But he gets a cheat skill that gives him a kingdom and a harem too.

Yyyyyyyyep.

From: GOS
"Han sang-hyun" Is a boy that dreams to become a manhwaka, and one day he hears a story that falls like lightning from a clear sky. And that is that he had a fiance he never knew about. After not being able to win against his grandfather he goes to the meeting against his will. however the lady he meets there is a girl who feels to be a rich spoiled girl named "Yu Suh-eun". after having a fight with a girl that acts negatively to him, he comes back to his house just to find out that Yu Suh-eun is in house!? What? The new house that the'll be staying in is the "Marriage House"? Will han Sang-hyun and yu suh-eun break through their families plans to successfully get divorced!?

Orginal webcomic

Minamoto-kun has a face pretty enough to make people think he's a girl. Because of his face, he was bullied by the girls in middle school who were jealous of his good looks. He developed a fear of women due to the trauma, and for that reason chose to attend a high school for boys. Just as he enters college and makes a promise to himself to overcome the trauma of his past, his father remarries and asks him to move out of the house. His father arranges for him to live with his aunt (Minamoto-kun's father's younger sister) for the time being. She is an extremely beautiful woman who is also a non-tenured professor at his college. When he arrives at her apartment, she shows him her breasts and tells him that he will be her "guinea pig" in her reverse Hikari Genji project.

The boy of my dreams, Iriya-kun, wants a girl to act as his fake lover?! Oh god! This is a great opportunity~ I shall definitely take it! But....

Three childhood friends (men) were lamenting about their unhappy lives when a strange beauty with the power to stop time appeared. She introduced herself as an agent of an organization called "Society", and invited them to join a game: after 300 days, the most unhappy one would have all his wishes fulfilled. Who was this girl, and what would become of these three men?...

England, the early 1900s. Alice, a young noblewoman, has a Japanese maid named Hanako working in her household. The two have a fairly typical relationship…until the day Alice begs Hanako to kill her. As Hanako tries to figure out why her mistress would make such a terrible request, she and Alice grow closer until an entirely new feeling begins to blossom between them.

About a class full of espers.

From AOC Translations: The great snow-covered kingdom of Bistron, legend has it that an evil witch lives in the Black Forest at the edge of the kingdom… That very witch, Veronica finds herself summoned by the ruler of Bistron through his messenger of noble blood, Ignatius.

Synn is a hard-luck high school student. One day, he becomes student council president. But his job as president includes getting rid of mazoku (denizens of hell) that appear in his town as well. Also, he is informed that his father is the Maou (king of demons) and he is supposed to succeed to his position in the future. He has to fight against mazoku as the president, but his father is the leader of those mazoku. Well, will he be able to keep it a secret and enjoy his school life?

Natsuyasumi-hen follows a variety of characters over their summer break between the Nine School Competition Arc and the Yokohama Disturbance Arc.

Team Captain Yoichi Kouda is a high school track athlete "specializing" in 200m distance running. He has neither the speed for short distance, nor the stamina for long distance. And other events are out of the question because he has no agility whatsoever. What he does have is determination to train longer and harder than anyone else.

On a team with a celebrated history but has declined in recent years, he is surrounded by teammates more talented but less motivated than he is, and he finds it harder and harder to motivate himself to improve, until the "cool beauty", Momo Tange walks into the picture, capturing the attention of the entire school, as well as Yoichi's heart.

Chu Feng was an Assassin. When he was on a mission, he failed and was hunted to a corner, so he jumped down a cliff. After his death, he entered the underworld. He spent 500 years and became the most powerful in the underworld. He became the most powerful demon called Demon King. 500 years in the underworld, his only desire is to return to earth and meet his lover, and manages to destroy the pearl of death in order to return to earth. But on earth, it turns out that there is a little girl who has been waiting for him...