Masaichi Mazono, an otaku boy, and Toiro Kurumi, the most beautiful girl in school, are childhood friends.
Toiro, who was always in Masaichi’s room, was supposed to be like family to him.
But one day, Toiro, who was constantly getting annoyed by her romantic troubles, asks Masaichi to play the role of her boyfriend.
They thought it would be simple to pretend to be a couple because they’d been together for so long, but their ideal childhood friend can’t possibly end up as a false lover…
“E-eh no, holding hands is embarrassing.”
A childhood friend who is more than a lover embarks on a more adventurous lover’s life than she could have dreamed!

A comedy 4-koma manga revolving around the normal life at school of the minor characters of Fate/stay night and Fate/hollow ataraxia, specifically the character Himuro Kane, classmate of Fate/stay night protagonist Emiya Shirou. This manga by Mashin Eiichirou is a spin-off that tells the normal school life of the supporting characters Himuro Kane, Makidera Kaede, Saegusa Yukika. Other characters are the regular cast of the main games: Mitsuzuri Ayako, Tohsaka Rin, Ryuudou Issei, Matou Shinji, Emiya Shirou, Kuzuki Souichirou, Fujimura Taiga, Matou Sakura, Mitsuzuri Minori; "guest" characters from other series Ciel, Seven, Sajyou Ayaka (formerly the heroine of the never finished prototype novel of Fate/stay night) are also featured, and other classmates Gotou Gai, Fujimoto, Dezaki, Hirumata. The story is centered around classic school events such as a ball game tournament, field trips and inter high school competitions. As such, there is no reference at all to supernatural things like magecraft and Heroic Spirits.

I, Sora Satou, woke up to find myself transported to what they call a "reverse chastity world." Although I was confused at first, little by little I adapted to this new world’s values and eventually ended up working at a supermarket across from an all-girls high school. Just when I had finally gotten used to life as an employee under the kind and beautiful manager, a rumor started spreading: "That male employee... they say if you ask him, he’ll let you do it." And so, a group of beautiful girls who took that rumor literally began to gather around me...

What am I supposed to do now!?

A high school guy who doesn't trust girls anymore has been tricked too many times by girls who just wanted to get close to his good-looking older brother. After all that, he decides he’ll never trust a girl again.

But then, a pretty girl in his class suddenly starts talking to him a lot. Is she just trying to get to his brother too…? Or does she actually mean something else?

A male to female ratio of 1:359?! Saotome-kun is admitted into a school full of gyarus.

Rintaro Shido, a high school student who aspires to become a full-time househusband, is in the class with a very popular idol, Rei Otosaki. The two have no connection other than being classmates, but their relationship changes drastically when Rintaro serves Rei a home-cooked meal after she nearly collapses from hunger! The food was so delicious that Rei said, "Can I come here every day to eat?"...?!

Losing one match after another, shogi prodigy Yuhi Ninomiya became a shadow of his former glorious self. It was then that he faced his old rival Kanata Kuji in an official match. However, the record-setting match ended with Kanata winning his 27th consecutive game, and Yuhi losing his 17th consecutive game. Feeling frustrated and depressed, Yuhi stops by a bar, when he has a fateful encounter with a certain girl! Her name is Tsuki Kayamori. Although she is overbearing, self-centered, and eccentric, her sharp and unorthodox playstyle is as if she was chosen by the shogi God!

(Source: K Manga)

It's a secret that I'm dating the love of my life at school. There's no way I can tell anyone, especially when we're both girls. But I can't help my feelings from slipping out in the background. It's not the ideal way to be a couple, but I can put up with it because I really love her... But such loneliness has also nurtured dark thoughts in my head.

At the end of summer, Eiji Aono witnesses his childhood friend and girlfriend, Miyuki Amada, cheating on him with Kondo, the ace of the soccer team. Betrayed by her and emotionally shattered, Eiji becomes the target of baseless slander and harassment. Cornered and with nowhere to turn, he escapes to the school rooftop—where he meets a mysterious girl...

Park Hyung Suk, overweight and unattractive, is bullied and abused on a daily basis. But a miracle is about to happen.

Morino-san is laid-back about everything, but languid as she is, she just won't leave me be.

A little brother-like secret relationship with his little sister!? A romantic comedy between siblings with a misunderstanding begins!

Akira, my stepbrother, was brought into my life as a high school student after my parents remarried. He is a cute boy but shy because of the complicated family environment he grew up in. I had a crush on my brother, so I always spent time playing with Akira for his sake…. He loves me… We hit it off, and the distance between us grew rapidly! I asked him,
"......Brother, do you like me by any chance?"
"Of course I do."
The misunderstanding between the two of us deepens. And finally, I realized that Akira was my "sister" and I was confused...
"I like the distance between my brother and me as we have always been. I'd rather be with you more than I am now."
Akira's approach to me, aiming to make us "lovers" instead of "siblings," has begun!
A flirtatious romantic comedy with a little sister who is too cute and carefree to be a brother!

Official Light Novel: https://fantasiabunko.jp/special/202111jitsuimo

High school girl Sayama Umi is placed in the care of the neighboring Hiroi family while her mother is away on a long business trip. The Hiroi household is home to Shoya, an eight-years-older figure she admires, and Umi's heart races at their long-awaited reunion. But the Shoya she encounters is completely different from the one in her memories...

A faintly sparkling cohabitation story about meeting changed memories once more.

Yoshida is a gloomy second year middle school student whose precious youth has been spent stuck in the corner of his class without being able to make any friends.

Shigure is the girl who sits next to him in class and she is as gloomy as he is. One day, she struck up a conversation with Yoshida and declared,

"I'm going to become a cheerful person!"

Thus begins Yoshida and Shigure's battle to become cheerful people in their effort to spend a brighter youth.

An average romcom told from the perspective of the losing childhood friend. Other things happen as well.

Suzuki Iruma has just been sold to a demon by his irresponsible parents! Surprisingly, the next thing he knows he's living with the demon and has been transferred into a school in the demon world. Thus begins the cowardly Iruma-kun's extraordinary school life among the otherworldly...

Hina Tsurugi is a first year student at a coastal high school and regards herself as an indoorsy sort of person. Walking along the embankment, she runs into an older schoolmate, Kuroiwa, who invites her to join the “Teibou” club and start fishing! Surrounded by eccentric club members, how will Hina’s high school life turn out?

Set on a solitary island in the distant sea, a dangerous school life begins!

Kaoru Jahana, a boy who aspires to become a true man, begins his high school life on a solitary island in the sea. There, he meets a charming girl, Kanra, who is actually a demon who feeds on men's spirits...and it turns out that all the women on this island are the same demons!?

"If I slash, it will be cut."

I, who was once called the best swordsman in the nation, have ended up in a mobile game I've only spent money on a few times. And I’ve even received the blessing of the 'Sword God'!

But… the only weapon I can use is a sashimi knife?

Just one minute a day. I become a Sword Saint with a sashimi knife.

For as long as he remembers, Komi has been shorter than his fellow classmates. He always felt inferior as a result, until he met Obinata - a girl who is head and shoulders above him.

Yes, Asumi Obinata is tall. She’s imposing. But she’s also Komi Amane’s girlfriend. And these two are the happiest kids in the world.

The super-popular oneshot has been expanded to a full series here!