A lonely "demon lord" and a self-centered "hero"!?

What about "villager A," caught in the middle!?

This is a school that prepares people for roles in fantasy stories. However, those who possess the "traits" of a "warrior" or "wizard" are but a few. Most will become no more than mere "villagers." I, Satou, am also one of those "villagers"; but one day, a girl possessing the trait of "demon lord," Ryuugamine Ouko, set her eyes on me. She's short and a surprisingly calm, good girl, but she'll abruptly mutter about destroying mankind; give me a break. Taking up the opposition with passion is my childhood friend, Hikarigaoka Tsubasa; she's more trouble. This girl is also quite the beauty, but as soon as she makes up her mind, she's an absolute troublemaker...

This is a world that's slightly abnormal, with a slightly abnormal cast, interwoven in their dilemmas; a slapstick comedy!

There's something unusual about my class. Our beautiful and perfect angel classmate, Amane, just died. That's why everyone is doing a “funeral” for her. Everyone seems to be scared but did not say anything. I'm sure they are hiding something. After all, before she died, Amane said something strange. Hey, don't tell me, there are traitors among us? Well, let's hold a “class meeting”! No one should ever leave the room before we know who's behind this...

A collection of stories:

1) Himitsu Shoujo (Girls' Secret Nectar)
About a girl whose supernatural ability helps her get everything she wants in life... except the most important thing of all.

2) The Yuri Cage
It's about a girl who buys a "yuri cage" with a strange little girl inside.

3) Planet Aimer-lis

4) Don't Make Me Fall For You
A transfer student finds herself the newest target of the biggest playgirl in school.

5) Dream Drops
The main character buys some magical drops that are supposed to make her dream come true.

6) Love

In a small village, there is a small bread shop run by small twins. If the very busy forest becomes gloomy, then that's just the beginning. Sometimes, there's the beat of a heart. Sometimes, there's shedding of tears.

The Sorcerers' Guild, in possession of many dangerous grimoires, was condemned as a terrorist organization.
To combat it, a chivalric order supported by cutting-edge science and technology was formed.
One after another, the sorcerers were captured and executed, leaving the survivors to live on the run.
Among them is Spectral Wizard, a sorcerer with the ability to turn immaterial...

Linlin is a fashion design student, upon touching the tree spirit “Ye”, the two agreed to help each other out. Linlin turned from an ordinary student to the talk of the school due to Ye’s power and her life changed drastically. Ye slowly fell in love with Linlin and with Linlin’s help, Ye finally found his long dead sister’s body but he must face love, affection, and deception......

1-3. Kedamono Arashi: Kiss Me Baby!
4. Sono Na wa Natty
5-6. Oishiku Meshiagare

"Twins" - Two children that develop in the same womb and are born at the same time, Even though we were raised in the same environment, even though... "When we were born, Hinata took even my portion of the nutrients... Those nutrients, I don't mind giving them back to you, Haru?"

In another world, the skill I was bequeathed was――"Summon Kitchen"? Eh, what the heck is that?!

The Office Lady that got mixed up in a high school girl's summons to another word―Isarai Shiina.
Unlike the warm welcome given to the high school Saintess, Shiina is forced to live in a corner of the royal palace with her mysterious and newly obtained "Summon Kitchen" skill.
Apparently, using the skill to cook food amasses points, which can then be used to evolve the "kitchen".
'With nothing better to do, and things being what they are, I might as well work towards getting my glorious dream kitchen!' but, despite her enthusiasm, Shiina was told to keep the contents of her skill a secret by her guardian knight, Hurst...

An autobiographical manga about the career of Nagai Go and how his most known works were born.

How a young Nagai Go, struggling to break out of his typecasting as the go-to guy for gag manga by breaking into the sophisticated world of story manga.

From OSTNT: The continent of RAIEO was once ravaged by the Demon Lord and the Demon Race, in the darkest of times a Brave Knight carrying with him a Sacred Sword, saved the continent. After 300 years of peace, with the Sacred Sword now gone and the Sacred Sword Temple being occupied by the Demon Race, the continent of RAIEO is once again at a treat of war. Thus, our protagonist together with his donkey and a mysterious girl embark on a journey to stop the Demon Lord and the Demon Race.

Saya is an average school girl in every way but one: she's got a HUGE crush on her older brother! She's never been able to raise any flags with him (mostly due to her habit of beating him to a pulp whenever she sees him), but one day, she wakes up in the body of a cat that he brought home! Could this be her chance to make her beloved older brother fall for her?

Gyojin mistrusts all alphas and he despises the society that makes life difficult for Omegas. He manages to find a job, but his superior is none other than Hyeono, his former classmate from middle school who was bullied because of a misunderstanding that involved him. They settled the misunderstandings, but Gyojin is now bothered because Hyeono started courting him. While trying his best to reject Hyeono, Gyojin’s senior from college, the source of his trauma of Alphas, re-appeared in his life. And this sunbae also turned out to be one of his superiors…

Nozaki Sumire is a bit “dry” for a high school student, but the truth is that she's just bad at relationships. Suddenly, a huge explosion occurred, and she's engulfed in a fire!

All of a sudden, she appears in front of a good-looking man with silver hair and purple eyes! Is this the identity of Gladitoria's former emperor?! (Or- What is the identity of the silver-haired man?!) Furthermore, the mysterious sentient ivy serving him. In the cruel emperor's era. A love story revolving around two people in a gentle fantasy world!

From Yen Press:

When sweet and docile Hikaru swaps bodies with her beloved twin brother, Youta, her personality does a complete one-eighty--and she starts taking brotherly affection to a whole new level! Will Youta ever get his body back in this cracking forbidden love comedy?!

The key to save the world is in the primeval period!? Connecting the present and the past. Burning passion opens up the future!! A primeval survival mystery that passes through time and civilization!!

One shot release in Jump SQ (2018), by Tatsuya Endo ~Yunomi

Komi-san for Medical Students.

The story is exactly the same as the title!
"The Story of a High School Girl That Wants to Engage in Sugar Mama Activities With a Middle School Boy."

Original webcomic released on Pixiv