Pediatric surgeon Nakamichi grapples with grief when his older lover, hospital director Tsutsumi, is critically ill following a stroke. His problems are compounded when the younger Tsutsumi, the director's son, begins working with him as a new intern. Tsutsumi junior dislikes Nakamichi on sight, and he soon reveals why: he knows all about his father's illicit affair with Nakamichi.

From AnimeCouncil²:
In times gone past there was a Lord, one who loved Konnyaku. He loved it so much that he ordered his ninjas to protect the family of the finest Konnyaku makers in his land. The protection of the family continues even to today, Mamo-kun, youngest of the ninja family protects the innocent and naïve Yuuna from sinister forces, though more often from herself.

From Mad Hatter Scans:
In the peaceful period of the early Edo period, people lived in fear of Shadow Beasts that consumed the heart of the people. Exorcists and hunters use their abilities to rid of the beasts, and when a young exorcist named Hibana, puts herself in a reckless battle against the Shadow Beasts, she is rescued by lone Hunter, Tsugumi, causing the beginning of a romantic adventure.

The "Great War of Heroes," in which the hero and the demon king vie for survival and power in each incarnation. The fourth great war was also a war where the heroes defeated the Demon King… it's an undisclosed fact. Twoeight, the ace of the “Agency” in the dark side of kingdom, undertakes all the dirty work for country and supports the Hero to subjugation the Demon Lord from shadows. As the unsung hero, Twoeight hopes to live a peaceful life after the war. However, defeating the Demon Lord is not enough to bring peace to the world.

This is a story about an awkward boy who is a former “behind the scenes” agent. Fights, opposes, and tries as hard as he can to protect his daily life.
Original Web Novel: https://ncode.syosetu.com/n2133fo/

An official spin-off of the the super famous fantasy "The Eminence in Shadow".
OP main character × isekai reincarnation × misunderstandings!? This is the beginning of a spin-off of the super-famous web novel isekai fantasy "The eminence in Shadow".
Cid is a boy who reincarnated in another world, and decided to enjoy a scenario of being "the eminence in shadow, someone who meddles with the story from the shadows, and exhibits his true power in secrecy". Thus unfolds the story of him and the secret organization he leads—shadow garden—as well their their pleasant friends! An easy-going 4-koma manga starts right here and now!

Leon is the kingdom's most worthless Court Magician. One day, his repeated absences are punished and he is sent to the battlefield, but with the quick wits he was hiding he saved the Third Princess Sicily? Then, along with the reformer princess, and steeling his own resolve, Leon becomes a specialized officer determined to control events from the shadows.

Info from here

Drawn by an American artist, this textless short story is about a young man's encounter with a oni girl. The oni witnesses an act of simple kindness on the man's part and chooses to invite him to a secret youkai festival deep in the forest.

Grand prize winner of the 4th Kodansha International competition contest.

Kagefumi Merry takes place before the events of Yumekui Merry, and follows the adventures of a slightly different Merry than we are familiar with.

Izuna has been living the life of a double, devoting it to represent Princess Kisara of the East country, who has always had a very weak health. Even within the East country, a very few within the Royal Palace knew about Izuna's real identity. And the only one who called Izuna by her real name was the real princess.

Izuna's time of serving as Princess Kisara's double was supposed to come to an end once it was decided that Princess Kisara would be marrying to the Crown Prince of the West country to bring peace between the two countries. However, just a few weeks before the marriage ceremony, Princess Kisara's health suddenly turned worse. The Princess realized she had failed to set Izuna free of serving a life of a double. She apologized repeatedly at her deathbed, leaving the two countries' peace on Izuna's hand.

Now Izuna will probably have to lead the rest of her life as Princess Kisara, marrying a person from the enemy country. She vowed to fulfill her precious Princess's dying wish. However, she vowed never to fall in love with her future husband.

But, what exactly awaits Izuna in the West country?

From Winter Translations:

This is a story about a pair of twins who're, undeniably very different from one another. Big brother Shuuya and little brother Yuuta are basically light and shadow...

Alice Academy is a famous school exclusive for children with an Alice, children with special powers. It's affiliate music school, the Alice Academy Opera Troupe, now opens up to regular students as well.

Andou Hikari's brother has an Alice and is a student of the Alice Academy. She decides to enroll to the school. There she is paired up with Shinomiya Ema, a student with a secret...

Hajime has lived in fear of the monsters lurking in the shadows that only he can see. But after meeting a mysterious shadow girl who pledges to help him face his fears, he's dragged into the secret world of ninjas.

From MangaHelpers:

During the feudal era, warlords were not only in danger from enemies outside the castle, but also from within like their own lieutenants they trusted. To protect themselves, they secretly began to use decoys of themselves. Honda Masanobu was part of Tokugawa Ieyasu’s council and also his closest friend. However, to defend his home country from Oda Nobunaga’s campaign, he leaves his position. During the 10 years on the battlefield, he meets Jirosaburo Motonobu who looks almost identical to his former master. Masanobu comes to realize that Jirosaburo must become Ieyasu’s shadow because of his trustworthy character and battle experience. [vyc]

Fuuma Kotaro, a ninja, is a Kagemusha (body double) for Houjou Ageha, a princess. He masquerades as her when they go to school.

From Storm in Heaven:

Mizuki is a girl who wants to run away from her life. As she smiles at everything sad that happens to her, her soul becomes heavier day by day. Her escape door is Adam, an English singer. But is he really real, or is everything they've been through just a dream? Adam sees his dead Japanese girlfriend in Mizuki, but strangely, nobody, apart from a girl who met her at the gates of heaven, can see Mizuki. This is a story that takes place somewhere between dream and reality.

Meet Kageno, the super dull, glasses wearing, short first year high school girl. She has no friends and envies people who are enjoying their youth. Meet Mitsunaga Youta, the most popular handsome guy in school. Girls constantly confess their love to him, but he has no plans of dating anyone. After a string of events, he decides to ask Kageno to be his fake girlfriend for a month in order to stop the girls from confessing to him in exchange for his friendship. How will Kageno face all the ordeals that are about to come? This is the start of a love comedy between the school idol and the negative girl.

A story based on the new popular series of songs by Jin (Shizennoteki-p) titled "Kagerou Project (Heat-Haze Daze)". Shintaro Kisaragi--a HikiNEET who shut himself inside his room for 2 years--has been living his life normally until he met a cyber girl named Ene, who appeared in his computer screen when someone anonymously sent him a mysterious e-mail with an attached file--which was Ene--one year ago. One day, Ene had been messing up with Shintaro's PC. which causing him to go to the outside world for the first time in 2 years.

An anthology of Kagerou Daze stories with a serious and dark sadness theme by various authors:1) Rectangular Dreams by Itokichi2) 0 and 1 Cherry Blossom by Chawanmushi3) The Rumored Ghost Girl by Kochi Ryousuke4) Before the Cherry Blossoms Scatter by Okazaki Oka5) Beyond the Cyber Journey by Arisaka Ako6) What I Can’t and Can Do by Akamura Saki7) Friends by Kiritani Subaru8) If by Hisame Uta9) Light Days by Youko10) I’m Off by Sayuki11) Life Choices by Yukiji12) My Feelings by Satou Mahiro13) Memento Mori by Ryuuseee14) My Answer to You by WannyanpuuRelated:> Kagerou Daze( http://mangapark.com/search?q=kagerou-daze )

An anthology of stories by various authors:

1) Illusion Summers by Aki Arata
2) Summer Festival by Osora
3) Black Horror Memory by Satou Toshio
4) Stranded Days. by Ayane Shikihito
5) Kisaragi ☆ Summer Project by Komesuke
6) Start the Festival! by Ooshima Renmei
7) With a Clear Mind, Even Fires Will Cool by Sada Uoji
8) Your Voice and Soda Ice Cream by Itokichi
9) Flowing Noodles Warning by Toudzuki Youko
10) A Common Summer Story at the Beach by Tanaka Strike
11) Perfect Weather for Laundry by Peco
12) Konoha, Summer, and I (Physics) by Ryuuseee
13) Mekakushi Summer Vacation! by Wannyanpuu

An anthology of Kagerou Daze stories with a pop and comedy theme by various authors:1) Russian Roulette with Mekakushi Dan by Sayuki2) Big Brother Switch? by Kitora Kon3) Application! by Ayane Shikihito4) Shintarou’s Suffering by Yukiji5) Truth is stranger than fiction☆ by Sada Uoji6) What Remains in the Heart by Kiritani Subaru7) Sweet Red-Bean Soup Days by Amatsuki Hiyo8) Digital☆Diet by Komesuke9) A Story of Dressing Up by Tanaka Strike10) Not Here! Tsubomi-chan by Ryuuseee11) Cat-Hiding Code by Satou Mahiro12) High Fever Forest by Wannyanpuu13) Steam Days by Shidu Related:> Kagerou Daze ( http://mangapark.com/search?q=kagerou-daze )