Nina, a wyndian princess, and her guardian Cray are searching everywhere for Nina's missing elder sister, Elina. While traveling to her last known whereabouts they suffer an accident. On her way to a nearby town, Nina meets Ryu, a seemingly amnesiac young man. This meeting triggers a series of events that will involve them with the godly race known as The Endless, immortal dragons with the power to shape the world itself.

Closely follows the storyline of the original game.

This manga is deemed to be one of the works that initiated the "irrational" or "unreasonable" gag comic genre where the reason of its funniness cannot be explained by logic and traditional sense of humor, which made this title very popular among teens and early twenties at that time.

Spin-off of Kurayami ni Strobe featuring Sawayama & Hase.

From MangaHelpers:
It's fairly obvious to Terui Chiaki that her classmate Ajikawa Yoshio has a crush on her. He is completely not boyfriend material in her eyes and, even if he was, Chiaki already has a boyfriend. Their mysterious teacher Mr. Yamada sees this relationship between the two students and offers an experiment. He is able to make copies of people and objects and does so with Chiaki, creating a copy of her, except the copy has no knowledge of her boyfriend. Yoshio will hit on the Chiaki copy, who is named Koaki, and he'll try to make her fall in love with him. After a specified amount of time, the copy and original will be combined back together and which ever love is stronger between the current boyfriend and Yoshio will overwrite all other emotions. So this love experiment begins and both Chiaki and Koaki, being the same person, thinks Yoshio has no chance in hell but with each passing day, some feelings begin to bubble.

Yukiteru is living with his family friend Yuno after a fire burnt down his home as a child. They live their life until a fellow classmate Rena who is jealous of their close friendship makes a surprise move.

Volume 1
1-3) The Rumored Couple
Aoyama and Akabane, the president and vice president of the student council, are such a good match that there're rumors around that they're an item. Though both of them were supposed to be straight, everything gets complicated when Aoyama suddenly kisses Akabane saying it is an "experiment". As the experiment escalates, their hearts begin to flutter and their everyday life is turned upside down. If this goes on the rumour'll prove to be true... but is it really okay if things turn out this way?!

4) A Drug Against Unrequited Love
Every evening after work Sawano comes to shop in the drug store where Takimoto works. When Takimoto teases Sawano about buying energy drinks, hinting that Sawano might be needing energy during the night; Sawano blurts out that his love is unrequited. Who is the one Sawano loves?

5) Hanamaru Lunch
Everyday Hideki receives a lunch box from his childhood friend Shuntarou. Shuntarou wants to improve his cooking skills; but Hideki secretly wishes that the lunch boxes would be filled with Shuntarou's love.

6) The First Walk
The wealthy but clumsy Narumi is the master of his house since his parents passed away. He has a secret crush on his strict but gentle body guard Sakurai. When Sakurai's birthday is coming up he goes to shop for a present; at the same time the surveillance system set up to protect him breaks down.

7) The First Assistance
More about Narumi and Sakurai from The First Walk.

Volume 2
1-5) The Rumored Couple
The story of Aoyama and Akabane continued.

6) Selfish Recipe

7) The Father's Diary

8) The Secretary's Diary

From Yaoi Is Life:
Hebikui Tori
One night in the city, Nijou comes across a man having sex with another man. The next day at school, he runs into that same man, named Chitori, and learns that he's a member of the staff. Nijou can't help but become intrigued by this man who appears to lead two lives - by day, a regular guy on campus; by night, a minx who likes to take it from men in the city. When Chitori drops by his part-time job and they get to talking, Nijou finds himself desiring the other man and becoming attracted to him. It becomes an obsession that he can't shake...

From Canis Major Scanlations:
Uwasa no Futari
Mouri and Yura's friendship is plagued by constant rumors, the most famous one being "They are a couple". One day, when a girl asks Mouri out, the school spreads a rumor that they had a one-night stand; Yura gets jealous, and kisses Mouri in order to make one of their rumors true that they have kissed. Will Mouri ever realize Yura's feelings for him? Will they be able to regain the comfortable friendship they once shared or will it fall apart?

An indecent photo goes viral and Ai finds herself to be the centre of a weird rumour in school. Will the guy she likes trust her?

Midori Yamate is a 15 year-old girl and is very much a tomboy. When she was young, Midori meets a boy called Tsukasa Hino, who came to the island she lives on for a holiday. He teaches her to play soccer and she falls in love with the sport. Midori is inspired by Tsukasa and continues to play soccer in hopes that they would meet again someday. When they do meet again Tsukasa does something unforgivable. Determined to defeat Tsukasa on the soccer field Midori enrolls in an all boy high school.

Contains a short story of 2 chapters called Shounen x Cinderella in the 8th and 9th Volumes:
Sakuragi Azuma has a secret that no one should ever know about: he's actually Momo Kasuka, an up and coming female model! While shooting a new drama, he meets another arising newcomer named Yui Hazuki, and things are going to get heated!

From Attractive Fascinante:

Takamura Hikaru is a handsome prince. However, contrary to the rumours and his cool appearance, he’s weak, a crybaby and likes snacks and sweet things. He kissed his classmate, Sugimoto Yuu, suddenly and Yuu thought it was just a prank. Yuu took a liking to the prince, but is the prince serious about it? Will their hearts be finally connected?

Michiru is Akira Tennouzu's number one fan until her mother remarries and he turns out to be her stepbrother...

Yukako no Dream Theater series vol.1.

From iskultrip Scans:

Uemura Takitarou is a Genius Cosplayer who can change himself from head to toe. One day, he finds his only friend, Asami Kusaka, killed by the Night Blindness Man, a serial murderer who gouges out the eyes of his victims. Tominaga Hana, a model, discovers his talent and recruits him for the company, UC, an office that solves mysteries and crimes by manipulating rumors/urban legends. Can Uemura track down the person who killed Kusaka?

1-2) The place where it rained on the footbridge

3) I don't need to be cool

4) Break Through

5) Eternal Repose

6) Love's Won-Der

7) Test tube lover's growth method

8) After 5 is 4 am

Afterwords

Annoying! Cute! But Annoying!

The daily life of a quiet college student who just wants to left alone, being teased by his cute, stacked underclassman.

1) Uzakoi
Shuuji thinks that girlfriends become troublesome when they start saying 'annoying' things... which is why he always breaks up with them in a few days. The only girl who has been with him for the longest time is Risa... but she is 'just' his 'bed-friend'.

2) Suki desu Oniichan
Aoi loves her childhood friend, Koutarou-oniichan. However, he only sees her as a little sister. Aoi's like a child, both inside and out. When a rival appears, she attempts to surpass her in womanly charms.

3) Double☆Booking
When the twin boys who competed for her when they were little, return in high school, Misato still has trouble choosing between them.

4) Anata no Kioku
Nagisa has lost parts of her memory in an accident, or maybe it was fate that has chosen to make her forget some unpleasant memories. But can she really return back to the time that slipped out of her hands?

5) Sakura no Shita de Kiss wo Shite
Mahiro is afraid that her relationship with sensei will end upon her graduation. So she tries her best to not graduate...

Satoru Takeichi, also known as Ichigo, works at a sawmill.

While working, he got into a mechanical problem and ended up having the first joint of his right little finger amputated. He and other employees searched for the cut off part, but couldn't find it.

Ichigo goes straight to the hospital and receives treatment. However, when he returned to his apartment after being hospitalized for a few days, he found another version of him...

From there, a strange shared life with another [Himself] begins...

Adaptation of a web novel serialized on the platform peep.

From Viz:

Kurôzu-cho, a small fogbound town on the coast of Japan, is cursed. According to Shuichi Saito, the withdrawn boyfriend of teenager Kirie Goshima, their town is haunted not by a person or being but by a pattern: uzumaki, the spiral, the hypnotic secret shape of the world. It manifests itself in small ways: seashells, ferns, whirlpools in water, whirlwinds in air. And in large ways: the spiral marks on people's bodies, the insane obsessions of Shuichi's father, the voice from the cochlea in your inner ear. As the madness spreads, the inhabitants of Kurôzu-cho are pulled ever deeper, as if into a whirlpool from which there is no return...

Come spring, Nishiwaki Haruka becomes a second year high school student. For a second time. Due to accidents and illnesses, she didn't have enough attendance, thus the repeat year. She transferred to Yamabuki High to run away from her old friends. One day, the baseball team from her old high school came for a friendly match, and Haruka bumped into some old friends. Her new classmate, Ono Kenta, found out her secret. She agreed to be the manager-cum-player to their weakling baseball team in order to keep him from telling her secret...

Billed as Hayashiya Shizuru's "much-anticipated manga debut" it's a story of demon-possessed video tapes and Kurebayashi Mieko the "v hunter" who battles them. But in truth, she's just a pervert who *only* saves pretty girls!

The story follows a boy without dreams who discovers a possessed violin.