Tea for Universe, Tea for Life. It's the Sengoku Era, a time when warring daimyou usurped each other constantly. There was a man whose soul was overtaken by the ways of tea and material greed as he worked his way up toward greater power and status. His name was Furuta Sasuke, a vassal of Oda Nobunaga. With his world broadened by the genius Nobunaga and with the spiritual insight learned from Senno Soueki, Master of Tea, Sasuke travels the road of the Hyouge Mono, or comical fellow.
To live or not to live. For power or for the arts. That is the question

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The World consist of the upper, the middle, and lower classes.

Those who are wealthy live in the Town.
Those who are poor live in the Fields.
Those below, in the thick and gloomy Forest....

In the Fields, Takaoku Restaurant's show girl, Kiyoko, supports her mother by managing the food preparation. One day, a regular patron named Tanaka, who recruits day laborers for the underground, requests that they bring meals to an assassin from the Forest called "Yorukumo," or "Night Spider."

Yorukumo was born in the Forest as a disposable child, raised to be void of emotions, unable to feel pain, and without knowledge of reading and writing. With Tanaka's instructions, he easily handles assassin jobs daily. When Kiyoko and Yorukumo meet, the World begins to come apart a little at a time.

From Lezhin:
A Catholic school where everything seems tranquil and fine. But for Ayeon, a day doesn't pass without getting bullied until one day, Yeonhwa steps in against the bullies. Ayeon is grateful for Yeonhwa but what she doesn't realize is that there seems to be something more than just good intentions behind that beautiful smile.

A poetic, surreal yet heartwarming 4 panel series about the everyday.

From DrCoke at MangaHelpers:
He has never been the type to stand out in the class. Kurihara Yuzuru has lived life by avoiding entering the lives of others, staying to himself. The story begins where he has to go to a whole new school, which means new classmates. He lacks any confidence to make new friends, so the fear of rejection drives him into a wish he never thought he would make. This single wish leads to a first day of class he would never forget. Yuzuru will have to make choices that will significantly alter others' lives, choices he could never make in the past.

She's lovable and cute, and she shouldn't be treated poorly.

Yokoi Taku has trouble getting along with people, so he moved to Tokyo as soon as he graduated from high school. He now lives alone, making a living by delivering newspapers and drawing doujinshi, though people totally ignore his non-erotic works. One day, a girl named Saitou Megumi suddenly shows up at his door, claiming that she came all the way from Tottori to meet him because she's a big fan of one of his doujinshi. It ends up that she has faced many hardships herself, and with no intention of leaving, she ends up living with him.

Countless tombstones stand in rows throughout a small community, forming a bizarre tableau. What fate awaits a brother and sister after a traffic accident in this town of the dead? In another tale, a girl falls silent, her tongue transformed into a slug. Can a friend save her? Then, when a young man moves to a new town, he finds the house next door has only a single window. What does his grotesque neighbor want, calling out to him every evening from that lone window?

Meet Haruka Kawatsuji, a young boy who miraculously survived a fall from his apartment's balcony as a child. Unfortunately, despite his best efforts to find that same thrill in sports and horror movies, he's never quite managed to feel as alive since. However, that may all be about to change in a fateful encounter with one very eccentric girl!

From mangaupdates:

Born into a wealthy family, she lost her mother at a young age.
She is Riona, a girl who was raised by a single father.
At the girls' school she attends, she has many friends and a special partner of hers,
She lives feeling a little lonely that her busy father has just left her house.

One day, her father bought a robot that she said was her "housemaid"
She witnessed the act of "Forty"...?

A girl who wants her affection and a robot who doesn't know her feelings.
A dramatic story of gems!

Macabre manga master Junji Ito applys his singularly anxious touch to a comic book adaptation based on No Longer Human (Ningen Shikkaku in the original Japanese), a classic of modern Japanese literature written by Osamu Dazai. The poignant and fascinating story of a young man who is caught between the breakup of the traditions of a northern Japanese aristocratic family and the impact of Western ideas. Portraying himself as a failure, the protagonist of Osamu Dazai's No Longer Human narrates a seemingly normal life even while he feels himself incapable of understanding human beings. Oba Yozo's attempts to reconcile himself to the world around him begin in early childhood, continue through high school, where he becomes a "clown" to mask his alienation, and eventually lead to a failed suicide attempt as an adult. Without sentimentality, he records the casual cruelties of life and its fleeting moments of human connection and tenderness.

The story centres on the oddities that appear in the distortions within everyday life.

What destiny awaits them after the screaming?

After abruptly departing from a train in a small town, a couple encounters a “weeping woman”—a professional mourner—sobbing inconsolably at a funeral. Mako changes afterward—she can’t stop crying! In another tale, having decided to die together, a couple enters Aokigahara, the infamous suicide forest. What is the shocking otherworldly torrent that they discover there?

One of horror’s greatest talents, Junji Ito beckons readers to join him in an experience of ultimate terror with four transcendently terrifying tales.

The legend of the God of Fortune remains.

Hayasaka Ruka is a 2nd year middle schooler living with her grandmother on Neijima. One day, she spots a strange figurine by the sea and brings it home with her. Upon placing it in a mountain shrine and making a small wish, "Fukunokami", which resembles a peculiar doll, appears before her. But as Fukunokami's influence grows, the islanders begin acting strangely!
Will Ruka's prayer become a blessing -- or a curse?

Nominated for the 10th Manga Taishou Awards (2017).
Nominated for the 11th Manga Taishou Awards (2018).
Nominated for the 12th Manga Taishou Awards (2019).

The girl I love is my brother's ex-girlfriend. She's a trashy girl who's clingy, stubborn, and takes advantage of my weaknesses. But I can't seem to stop our relationship.

Souya is a sullen salaryman whose days are spent chasing after work deadlines all while still keeping his dream of becoming a manga artist. To him, his one and only support in life is none other than his beloved wife, Yuuka. One day, on his way back home, he was suddenly caught in an accident and before he knew it, an alien had taken hold of his body! Not only that, the evil threat of another alien is closing in on Yuuka too!

Here comes Souya as "Otto-man", his superpowered husband form, as he jumps in to save his dearest wife! Have a taste of his love for wife and this world!

Hanadera Keisuke is obsessed with yuri, and he's read all the Yuri Hime manga. However, he is sadly aware that there is one thing a lesbian romance absolutely does not need-- him. One day, a student named Akane transferred to his class from an all-girls school. She used to go to school with another classmate, Saori, and Akane immediately tried to pick up their friendship. However, her clinginess, desire for alone-time, and intensity all convinced Keisuke that he was finally seeing yuri in reality! Soon enough, Keisuke had stalked them enough to see a love triangle between Saori, newcomer Akane, and their standoffish classmate Matsuoka. Is there truth to his observations, or is he viewing the world through yuri-tinted glasses?

Note: Comic Yuri Hime is not a seinen publication. It doesn't come under any of the four major demographics.

Everyone in a high school is suddenly transported to another world. As they are attacked by monsters they find that some of the students now have superpowers. They organize themselves into two groups. Those without powers are called the Stay Home Group and those with them are called the Exploration Group. On a day where most of the Exploration Group is out, the remaining ones that stay behind start the slaughtering and raping of the Stay Home Group.

Here we meet our protagonist, an average guy with no abilities who had just barely escaped death at the hands of his schoolmates. He ends up far away in a cave on the verge of death, exhausted and wounded when a slime enters the cave and starts eating away at his hand. All he can do is utter, “…please… someone out there… help me….”

Chateau, a headhunter from the organisation of bounty hunters, met a mysterious person named Son Ryang-Ha while on one of her missions. After their quite violent confrontation, Ryang-Ha got suddenly interested and asked her for a number. And thus started a game of cat and mouse, in which the hands of the participants are fully covered in blood...

After losing his wife and daughter in a horrific accident, Yun-Jae finds himself stuck in his routine until he receives a diary from his future self. “I can see… my wife and daughter again?” Through winning the “games” in the “parallel world,” one will receive a “prize,” and using this, he could revive his dead family… but out of all the survivors of this cruel world, Yun-Jae is the only one with the knowledge of the future. Will he be able to turn his greatest wish into reality?

Oda Teruasa is a high school student gifted with intelligence, good looks and wealth, making him the "perfect scion" of the Oda Group: a powerful conglomerate whose name is known all over Japan. But then he gets caught up in a nightmarish game of winner-takes-all against the son of the Belmont mafia family...