This manga was released on Twitter by Yamamoto Souichirou.

Invaders from an unknown dimension prey on the loneliness of the human soul. The only thing between them and the success of their diabolical plan is 4 youngsters with powers to rival the invaders!

When Ryuuta was 6 years old, he was attacked by a youkai. At that moment, a mysterious boy named Izumo came to his aid and exorcised the youkai. Izumo gives a promise that when Ryuuta gets strong enough to be by his side, they’ll meet again.

After 10 years, their paths cross once more. But it seems like Izumo doesn’t remember Ryuuta or their promise! When a youkai threatens the village, Ryuuta tries to help but Izumo ends up getting injured. At that moment, he transfers some of his power to Ryuuta...with a kiss! Together, they exorcise the youkai, with Ryuuta vowing to protect Izumo from now on and following him on his travels!

(Note: “Yokai” are supernatural spirits or monsters in Japanese folklore.)

Captain of the Judo Club, Mochizuki, and Captain of the Karate Club, Ishio, are like cat and dog. Everyday is filled with quarrels over the small gym they share. One day, Ishio accidentally saw Mochizuki’s bare skin when he was changing clothes and became really flustered. As revenge for receiving insults from him, Mochizuki created a strategy - a sex appeal strategy to ruin Ishio.

Without any consideration of place or time, he would hug him, push down him, chase him anywhere, etc….

It’s a love story spun by boys with nice muscular bodies, noisily quarreling each other.

In 1944, Japan was destroyed by an unprecedented disaster, which immediately put an end to the war.

Devastated in the aftermath of defeat, the Japanese government complies with the Allies’ reconstruction plan and the country begins to recover from the loss after a few years, but America and China intricately divide the nation on a municipal level. Eventually, China’s military districts become Chinatowns, and places controlled by the United States are Americanized. The many Chinese and American immigrants make Japanese people the minority in Tokyo.

In Tokyo's City 23, a girl named Rose Haibara, who leads the Club Primavera, an establishment for ladies of the night, one day meets with Leo Shishigami, a laid back repatriated soldier with nowhere to go. There begins the story of Rose's determination to help her countrymen in need with Leo's support.

Damaya with Site Pier Country court which received the life to summon the savior to save the world.
However, it was "Hanashika" that Damaya mistakenly summoned.
This is a story that a rustic house saves the world with rakugo.

From etc:

“Things that should not be touched by humans somehow find their way into this world. That’s why you should never, ever touch anything that is foreign.”
Follow the adventures of March, a Syste Behard, who hunts ils– evil creatures that lurk in fascinating objects.

Among the quiet villages and towns of 18th century Europe, demons known as the Ill hide within the most beautiful works of art, sparked to life by the torment of their creators. Attracted by their jewel-like allure, the unwary find themselves possessed by the Ill and driven to horrific acts of violence. Only the hunters of the Ciste Vihad can dispel the Ill.March is one such hunter, tracking the Ill from town to town to find the antiques that contain the demons before they can possess anyone. If the worst has come to pass, March's full powers are unleashed to battle the fiendish Ill. Born of tragedy, the artifacts all have their own tales to tell, as do each of their victims. But March's story may be the most tragic of all.

From Moon Bunny Cafe:

There are some guys who are bothering me. Just when I was grinding my teeth and planning to get back at them, I found a strange notebook!

From Easy Going Scans:

Asuma Eiji has the gift of psychometric power, meaning he can touch people or objects and see their history in images and words. Most of the time, Eiji is just a delinquent high school kid who hangs out with his friends and neglects his schoolwork. However, his psychic abilities have brought him to the attention of police inspector Shima Ryoko, who often calls him in to help out with difficult cases.

Currently, there's a serial killer loose in the city who has just claimed his sixth victim. He kills young women, contorts their bodies into odd shapes, and uses spray paint on them. With Eiji's psychic help, will Ryoko be able to catch the murderer?

This is a sequel of Psychometrer Eiji.

From Batoto:

Haruno Kasumi, a 14 years old girl, is quiet and shy girl who gets bullied at school and has a crush on a classmate. Her mother has no interest in what happens at home and her dad disappeared years ago.

Her life changes drastically as she gets a gift from her long lost father...

Humans are distingushed between good and bad. Human souls would also be distinguished from Evil and good. In this world, there is a monster that was given birth by a type of soul. They attack humans, and try in vain to become the rule of the Earth.

Newman and Gwen are professional monster hunters who work for the Creature Removal Department, but for these two, killing monsters is the easy part, it's navigating their relationship that gets complicated. Set in a modern fantasy world, Newman is a mix of comedy, action, romance, and a little bit of horror.

Policeman Brandt has a new mission: to catch the leader of an uprising illegal porn company. But in order to go undercover, Brant has no choice but to do an audition, naked?! And winds up being filmed in porn videos...?! by Snow Flower Scans

Ao Sakabara is a rising young actor who loves his fans. He credits his success to them. So he is thrilled when he gets a huge role in a drama written by his favorite screen writer! To top it off one of his co-actors is the biggest star of his agency. Life is good until an unexpected part of his past shows up to ruin everything.

An anthology on women's issues in modern-day China, dealing with topics like abortion, unwanted pregnancy, the disillusionment that comes with growing up, etc.

Series of stories about Parasyte, from various notable mangaka.

The story of a young boy who decides to commit suicide, only to find himself in a strange world after his death, told in the form of a picture book.

28-year-old Kiwako meets a man who smoking on the balcony one day. Her next door neighbour, Nuihara, a lazy, 52-year-old college professor.
As Kiwako is considering abandoning her career as a ballet dancer, he gives her some sincere advice. Until now, Kiwako had given up on love, but his words have stirred up a passion within her.

Three colorful heroes fight a corrupted superpower world where humanity has found and toyed with the very building blocks of god. A power to create, to destroy, to change the rules of the cosmos, this unbound matter is called "Clay". When man found it they used it to create super-powered god-like humans called "Boundless".

With the aid of the Boundless, humanity formed a massive and powerful force called "ARCH" and "saved" the world from itself. Their goal is to keep the order by any means and create more Boundless to strengthen their coil. With the powerful ARCH in control, no one has ever resisted them and lived, except for three renegade Boundless that will slowly try to spark the fire of chance and demolish ARCH. Mura, Ronin, Karasu soon meet a young girl named Kasa whose father was killed by a Boundless called Griffin of the Clay. The heroes must help Kasa and find the Clay before Griffin and ARCH do.

Yokota and Mishima are art students at a University. One evening, everyone goes out drinking and Mishima ends up in a car accident. Taken to a hospital, his body is on the brink of death. But, his soul pops out and ends up trapped in a studio room at the University. He won’t die because there’s still something keeping his soul connected to this world. Yokota is the only one able to see and touch him, so he has to help Mishima put his soul to peace.