Kumamoto Chieko died just before she could fully enjoy school life as a high school student. Before it's fully decided whether she should be sent to Heaven or Hell, she gets tricked by a mysterious pumpkin-head "person" who instead sends her to Purgatory.

An anthology of Tsukihime－A piece of blue glass moon－created through a collaboration of artists who love Tsukihime.

The everyday of GobSlay in high school.

Sakura is young wife. A bit rustic, loves cosplay, and constantly brings her husband problems.

The story of an ordinary college student's interactions with his senpai at work, who happens to be in highschool.

The setting is 15th century France. A girl named Cerisier, coming from a poor, rural family, sets out to the capital to seek work. On her way there she unexpectedly acquires an oversized sword, the Zweihander. Guided by the girls she met at the capital, she decides to set her sights on becoming a female knight. Everything carries a fresh sense of excitement to her, whether it’s her first glance at weapons and armor, her life in the capital, or the instruction she receives at the Girls Knight Academy. This is the bright, shining life she spends with those sharing the same dream as her!

A "sweet school life 4-koma" where every pitch hits the batsman!! See the lives of middle school girls in Elegant Girls' Academy, girlish-ing it up every day!

Hiroshiman boy Onijiro Otogi, and Russian girl Paulina are a newly-wed couple in their third year of high school. Together, they will learn about proper physical relations as they raid their high school life!

Fourth dormitory of the Rat Production (commonly known as Nezumi-sou), the place where dropout idol girls live; the former child actor Sekino Roko, musician Nukui Hayu, and model Maehara Nina. Sakura Ino, who always dreamed of becoming an idol, moves in. At the same time the decision is made to demolish the dormitory. Due to the project launched by the manager Kajino Hoho, "Ochikobore Fruit Tart," occupants of the dormitory form a new idol group called "Fruit Tart," and start their activities in order to repay a one hundred million yen debt.

Miku-4 is originally a doujin web comic written by an amateur writer Nagimiso. Crypton authorized him and East Press to publish this manga.

This is a sad and touching story of Hatsune Miku, a shy android created by Crypton. She grew up with the help of the people she met during her journey and gained a human mind by the devotion of an engineer.

Nakano-san is a high school girl who can look into people's minds. Because of that, she finds out that the mind of the popular Toda-kun is full of wild fantasies about her!

Mayuzumi Kasumi is the school Idol. However, she doesn't realize this. She just wants friends, but that's difficult when she unconsciously seduces all the girls.

Another 1 page per day manga by Shouma Keito. Published on Twitter 4-koma, which determines continuation of serializations by number of twitter likes/retweets.

Links:
Twitter: https://twitter.com/shoma_keito

An "after 100 days" side story to the original "A Story About Wanting to Commit Suicide, but It's Scary So I Find a Yandere Girl to Kill Me, but It Doesn't Work".

4-koma spin-off of the Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka series.

Adventurers dive into the dangerous dungeon with the help of the <Grace> granted by transcendental existences called Gods. This is the story that covers the hilarious daily life of such Gods and Goddesses and their <Familia>, who are forced to run around on their whims.

Misaki Marei is a second year in high school, and she sucks at studying. She has no real goals in life, and has zero interest in taking the college entrance exam...until her childhood best friend, Micchan, says she's going to college. Now Marei has found her goal: pass the entrance exam for Akamon University, an elite college, and go to school with Micchan.

(tagged both shoujo ai and yuri for now because it's not clear to me which is accurate / more accurate. several Japanese Amazon reviews of this manga mention "yuri", but we all know there's no distinction made in Japanese)

In a seaside city, Fuuko, a young girl who likes places where she can feel the pleasant wind, joins her high school's sailboat club. Despite being a complete newbie, will she be able to compete in the tournament...? A marine sports 4koma drawn from the author's experience!

I applied here since it's a close walk from my house. But it's really full of girls, huh? In this 4-koma series Tsuda Takatoshi is a new student in the recently gender-integrated high school. He's asked to join the student council as the vice president. Thus begins his days as the only normal boy among 3 female student council officers...

A four-panel spin-off story following the adventures of the 99th Graduating Class from the main series of Shoujo☆Kageki Revue Starlight!

Serie included many short stories: - Many chapters haven't been scanlated yet.