From Summer Rain:

Natsume, who works at a game company, learns of his new step-sister the day of his mother's wedding. Just as he starts interacting with the game loving girl, he finds out the feelings the other siblings hold towards this girl…

From Ciaran Hillock:
The story features Colonial Operator ROCO143, Jolie, finding a paper airplane floating through space. It's a nice story because the paper airplane in the comic represents humanity's dreams and visions of the universe.

In the space between the magical world and the human world, there is a cafe called 5 CATS, which is a meeting place for the residents of the magical world. After a series of events which lead to him helping out at the cafe, ordinary high-school student Kei is inspired to become an apprentice magician himself.

Based on the game of the same name, this manga takes the events from the game and puts them in the point of view of the heroine(s) Touko Fukawa and Genocider Syo!

The souls of the Hakkenshi are reincarnated in the present. Inuzuka Shino is a high school student who shares the name of the legendary Hakkenshi, "Devotion". The name has caused him nothing but stress all his life. Now, because of his name, he's gotten himself wrapped up in a conflict with the Blight, creatures from a giant hole that has suddenly emerged in the city.

After his master Goomonryong destroys his ki-center, Shioon leaves the world of the Murim for a normal life to which he believes his master was trying to return him. But for a boy who holds the Phoenix medallion of the Sunwoo clan and the knowledge of the Black Heaven & Earth Technique, the world of the Murim will come to him... Continuation of The Breaker with new allies and enemies.

Manhwa you may like:
+ The Gamer
+ Gosu
+ Yongbi

Do you want to understand the meaning of life? Do you really want to live?

Kanna who usually enjoys being at the top of her class is outscored by one point on the first aptitude test of her high-school career by the high-level kuudere/low-level dandere Yuu. Unlike Kanna, Yuu is naturally talented and couldn't care less about getting high scores, so she throws away her test immediately after after getting it. This incredibly bothers Kanna, who then in front of the class, scolds Yuu for throwing away her "symbol of how hard she worked". This gesture of kindness(??) causes Yuu to fall for Kanna. And of course, all unbeknownst to Kanna, who's all about herself anyway.

From OSTNT:

Geli Shijie (Segregated World); A virtual reality game where only those who are chosen can play. In order to prevent more players from entering the Segregated World, three hackers of the Hackers Alliance G attempted to steal the Odin Core to destroy the server.

While trying to protect the two goddesses, Xiao Chang Feng was heavily injured, on the verge of life and death, he was then fused with the Core, unleashing the power of the Core, Xiao Chang Feng....

Yuuki and Michi -- two childhood friends who drifted apart are reunited inside a mysterious train.

From Aerandria Scans:

She dreams what any normal woman dreams: Find a good man and get married. There's only one hitch. She has absolutely zero talent in being a housewife! Determined to overcome this problem, she enrolls in classes to learn. The only problem is her teacher turns out to be a man and a younger one at that!

A demon boy who lacks horns on his head wields the cursed blade "Onikirimaru", the one weapon that can slay a demon, in a never-ending battle with the demons that haunt Japan during the age of the samurai.
Behind the stories of Oda Nobunaga, Toyotomi Hidetsugu, Ishida Mitsunari, and the other famous generals of the Japanese civil wars lurk secrets and demons ...
An astonishingly deep story about these demons and the sword Onikirimaru!
And this also includes the secrets of Onikirimaru's birth, which readers have always wanted to know.
The legend of Onikirimaru explains clearly how Onikiri was born, and the hidden secrets of his past.
Behold the battle between the darkness of the age of the samurai and Onikirimaru!

Once upon a time, there was a leak in the sky and the residents of the sky kingdom sneaked out to the human world. They were known as monsters and gods because they are totally different species. One day, five Ahrangs came to earth by God's will in order to send the sky people back to where they belong. After ever-lasting battles, the sky people were finally gone and never seen again by the world. However, it's rumoured that the legendary Ahrangs remained in the land still in search for sky people.

Coil is a man whose idea of "life" is his alter ego in an online world. A place where the hearts of people come together...and it is not a pretty place. The slender spiderweb that connects their souls within this endless world brings greater pain than reality itself.

From MangaHelpers:
Growing up, Wataru and his younger brother have both done gymnastics, much like their parents. At first, Wataru, being the older brother, could out-perform his younger sibling in the sport, but everyone quickly came to notice the large gap in talent between the two brothers. Now, his younger brother has been nominated to represent Japan in the Olympics, while Wataru lives his day-to-day life not knowing what to strive for. Wataru began attending a kick boxing gym, initially to just relieve stress. With the help of his gym mates and rivals, he begins to understand that hard work can surpass talent in the realm of kick boxing.

A metaphorical depiction of Japan's apprehension concerning the advance of western culture in the country during the period preceding the Meiji Era.

Historical figures and psychedelic experiences are on the menu.

Isei’s life crumbled right before his eyes as the one he fell in love with died. But when everything seems dark in his life something happens...

From Chibi Manga:
His touch isn't gentle...Sensei lives within the depth of my heart. Riri is taking a high school entrance exam on an island of 300 people. A boy saves Riri while she is filled with worries. Wanting to see him again, Riri is determined to try her best in this new place, but all the students are afraid of him and call him scary...!? A love with a very serious sensei!

Demon summoner - what is this? And why?... These are the main questions Touya Douji is trying to answer. Just where should he be looking for them? Maybe, inside himself?

From Yen Press:

Shouta Yamakawa is in love with manga…and the 2-D girls in it! So when a casually uttered wish to have the lovely, frail Sora Nagihara-his favorite comic heroine-by his side comes true, Shouta can’t believe his eyes! But he quickly learns that while this Sora is just as cute as the one in his comic books, “frail” is the last word that comes to mind for her personality! She’s one bold, brutal babe, and she’s ready to bring the world to its knees for him, her new master?!