From Wikipedia: Enno Ozuno, Master of the Enno temple used the demon guardian spirit Zenki to defeat the demon goddess Karuma. After defeating Karuma, he later sealed Zenki away in a pillar until needed again. Centuries later, his descendant, a school girl named Chiaki Enno (役 小明, Enno Chiaki, or Cherry Night in some dubs) is able to free Zenki, although the demon currently has the form of a brattish demon child. To transform this extremely defiant demon into the form that made him useful by her ancestor, she uses a bracelet that appeared on her wrist when servants of Karuma broke the seal that imprisoned a seed of Karuma. Zenki appears because the seeds of Karuma (which look like eyeballs) start appearing and turning people into monsters and Zenki needed again to eradicate this menace.

From MangaHelpers:
When the two were still young, Saito and Kawana Subaru were close friends. But with Subaru coming from a wealthy family, she was sent to the top school while Saito had to settle for a regular education.
But after painfully studying for years, he was finally accepted as a high school freshman through a scholarship program that only a handful of students are awarded. But what Saito thought was going to be a heartwarming reunion turned out horrible. Subaru had grown up beautiful and was the most popular person in school as she was kind to everyone, all except towards Saito who she seemed to despise.
Almost regretting his decision to come to the school, Saito wishes that somehow their dorm rooms would connect to each other. Magically, because it turns out that Subaru wished the same thing, their wish comes true but, in return, Subaru loses her self-control for one hour per day. During that time, her erotic desire for Saito, that she can normally hide, comes pouring out and her true intentions are revealed.
He wants to take advantage of this once in a lifetime chance but doing so might jeopardize their relationship during the other 23 hours.

From Aerandria Scans:

Our protagonist, Kazune, met Hiroyuki by chance when she was very little, and she remembers even now how much fun she had listening to his piano performance. She has always dreamed of meeting him again, but when she does, he is called "The Piano Prince" and seems very hard to approach. And then, before her appears the spirit of Chopin himself! He will make the wheel of fate turn for the two main characters!

From AQUA Scans:

A group of scattered people who've lived sin-filled lives head off to battle once again after their deaths; each one harboring their own reason to fight. When the fighting is finished and their sins have been atoned for, their souls will be returned to them. Kanata no Togabito ga Tatakau Riyuu is an epic fantasy from a long anticipated new author, and the story of those who fight on and are burdened by the sins from their past.

Even though J no Subete is three volumes long, each volume is a dynamic story in itself covering a particular stage of J's life. Her life is a dark story and it's a very psychological manga.

Book one is about all of J's trials and tribulations throughout childhood, during high school as she tries to find her place in the world and when she meets the somber honor student Paul...

Timeline (from Oriolidae & Sparviero):

01 Barairo no Hoo no Koro v01 ch01-05
02 J no Subete v01 ch01-05
03 2 Shuukan no Adventure v01 ch05-06
04 J no Subete v02-03
05 Barairo no Hoo no Koro v01 Extra

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Lezhin publication

Haru, a fun, lovable, easygoing guy, has a problem, he nearly burnt his girlfriend to death with his power. Meanwhile, another serial arsonist is on the loose, and there are rumours of strange incidents having occurred before! Could there be more people with unexplained powers? What will happen to the human torch?

Mahiro thought she was all alone in the world until her long-lost brother, Ren, and his handsome, mysterious friend showed up and turned everything upside down! Competent, determined and dangerous, the two men have vowed to protect the innocent girl from the ruthless Queen Phibula, who is hell-bent on seeing her dead. As Mahiro learns more about her forgotten past, she and her handsome bodyguards must face explosions, assassins, betrayal... and the promise of blossoming romance.

There was a parallel universe called, Gamindustri. A long time ago, in Gamindustri, a big incident took place. But the conspiracy of the four continent's hard driven goddesses, crushed it and brought peace. This is the story of what happened after the goddesses resolved the incident.

Based on the ps3 series of games, the games poke fun at several facts and details of the gaming industry; even to the point were character names are affected. For example "Neptunia" is a reference to the Sega's unreleased "Neptune".

Wandering the packed tunnels of Shinjuku Station, famous author Yosuke Mikura makes a strange discovery: a seemingly homeless drunk woman who can quote French poetry. Her name is Barbara. He takes her home for a bath and a drink, and before long Barbara has made herself into Mikura's shadow, saving him from egotistical delusions and jealous enemies. But just as Mikura is no saint, Barbara is no benevolent guardian angel, and Mikura grows obsessed with discovering her secrets, tangling with thugs, sadists, magical curses and mythical beings - all the while wondering whether he himself is still sane.

From Yaoi Is Life:

With clumsy, unsteady steps, we gave it our all and passionately loved one another. Giggling shyly, as if it was a secret. I remember a lot of days like that. However, after a quarrel, our hearts drifted away from each other...

"People often die around me."

A series of bizarre "deaths" stalk Genji, while a string of haunting memories and mystery surround him, all rooted in his childhood. A dear friend, a murder, and a curse. As more and more "deaths" unravel, the horrifying truth behind the origin grows ever more entangled. Seemingly the only keys to solve these mysteries are the charismatic shinigami Touya and Genji's own memories.

Note: English translation of this manga is NOT complete. It ended on chapter 43, while the series has a total of 44 chapters.

The series was simultaneously published in Japanese, Chinese and English (as Genji the Death's Friend) through DeNA's Manga Box app. English translation ended at the penultimate chapter. The last two volumes were published only in digital format.

This story follows the earlier career of star Suomus witch Eila Ilmatar Juutilainen, when she was a part of the Suomus Air Force, 24th Unit.

The romantic comedy's story begins when the pretty, mild-mannered student council president announces a new dress code regulation, "underwear is now banned."

Meet Koizumi, the new speechless transfer student. She loves ramen. A LOT. She will go to all lengths to eat some ramen and there is no such thing as too much. Oosawa Yuu follows closely behind, trying to get close to Koizumi at every opportunity, despite her disapproval.

Oshimaro is a problematic and selfish young boy who one day encounters a certain creature that would lead him to a whole new world of adventure, with friends that he will meet along his path, Oshimaro will be destined to save an ancient race called Shatins.

A crazy manga about Minako, a young and beautiful woman living alone with her cat, Moeko. And ahegao. There's also ahegao.

1-2) The Daydreamer Falls in Love
Inside a crowded train, Yuma takes a peek at someone else’s cellphone. What was displayed was a passionate love story between two men…! Furthermore, the one reading is a male student! Yuma cannot hide his surprise, but due to strange coincidences, he becomes closer to that student, Souta. Pushed by his delusions, Yuma gradually grows addicted to Souta…?!

3) Sadistic Treatment
Whenever he treats a student's wound, the school nurse gets weirdly aroused by his student's painful expression. Worried about this tendency and his students' well-being, he tries to hide his urges. What will he do when the popular soccer player Kunichika discovers his secret?

4) Can I Touch You?
Ever since he saw Sonoda at the entrance ceremony, Kenji has been entranced by the school idol's beautiful aura. By chance, he stumbles upon a lonely Sonoda nodding off in the prep room and asks for the permission to touch him. Thus, their strange relationship begins...

5) My Second to Last Wish
After Naoya was rejected by his best friend Daiki on graduation day, both of them prepare to say farewell to their joyful days together.

6) The Daydreamer Falls in Love -extra-
Yuma and Souta have been going out for two months, but somehow, they haven't progressed at all..?

A short story by Izumi Yoko published in Sanrio and Tezuka Osamu’s Lyrica magazine in 1977

Love Live! School Idol Diary is a series of novels in the Love Live! franchise, written by Kimino Sakurako and illustrated by Otono Natsu and Akame Kiyose with character designs from Murota Yuuhei. There are currently thirteen novels, split into two series:

- Each of the first nine volumes retells parts of the Love Live! anime series story from a different idol's point of view along with their backstories.
- Each subsequent volume of the second series talks about an event within the school year, and is each told from two different idols' point of view. These volumes also contained codes for SR cards of their featured characters for Love Live! School idol festival (JP), in the same poses as drawn on the book cover.