Ever since she was young, Nonoka always dreamed of watching the end of the year Countdown with a boyfriend. Now that she's in high school, she wants one! However, there's no signs of getting a boyfriend anytime soon, and it's already December.

The cool, lone-wolf girl and her precious, unrequited crush!

(Source: Ganma!, translated)

Amano, who returned to the city where he lived as a child for the first time in 10 years, meet Yukio Sawatari, a childhood friend on the first day of transfer, when he (a male friend) turned female! Although she shares her joy, as she suddenly turns into a girl and cannot hide her embarrassment. Yukio was affected by an illness like 100,000 other people, suddenly becoming a girl so-called " spontaneous isomerism metamorphosis ''!

The female childhood friend ♂ is cute and in trouble!? Forbidden TSF (transsexual) Love!

I would die if it would allow me to touch you. That is my love. Airhead Yuri-chan and her boyfriend Aono-kun had a perfectly normal relationship until one day Aono-kun suddenly “passed away” … They will never be bound together, and they cannot even touch. This is their difficult and almost too sincere love story.

One day, when I was making school supplies in the art room, a very scary-looking girl was staring at me...!? Crafts girl vs. art boy romantic comedy!!

There's an orphanage which trains its charges to be weapons of war, assassins specialized in magic. At this "school" Shiina has been having a difficult time coping with her roommate's death. She completely ignores rumours, including that of a supposedly impervious student by the name of "Mimi," who is thought to be even stronger than the teachers and isn't part of any group. While taking a breather, she encounters an overly cheerful young girl covered in blood, a they chat for a while before the child is hauled away by the school nurse. Shiina thought that they wouldn't meet again, but the next day, the girl transfers into her class and cheerfully introduces herself as Mimi.

Park Han-jun, once called a legend, was frustrated because he had nothing to lose anymore is given a huge amount of money.

An eye for an eye. An eye for a tooth! I’ll make you pay for what I’ve gone through!

As his rage explodes, he’ll get his sweet revenge and make them pay as much as they deserve!

A slightly erotic home love comedy that unfolds under the roof of the Yoshita family!

The eldest daughter, Juri, wears a swimsuit at home. The second daughter, Minori, has big natural breasts. The third daughter, Anri, loves reptiles. An adolescent boy who is an idol otaku becomes a sibling with these three girls. Under the roof of the Yoshita family, another naughty incident occurs today! [Translated by DeepL]

From Intercross
Waka is a 13-year-old Go lover! Learning from her grandfather, a pro Go player, she comes to enjoy connecting with the people around her, regardless of age or gender. One day, she meets the young genius go player, Sagisaka Souji, in a match that tore at both body and soul, and so she decides to become a pro go player herself!

From MangaHelpers:
A young noblewoman once dreamed of becoming a magic user like in the old tales, but her time in magic school has dimmed her passion. One day, a mysterious man comes to her rescue in the forest, using magic like in the old stories. Despite the fact that he is clearly skilled in magic, he is thrilled by the idea of learning new techniques. Since the only way to do that in this day and age is in magic school, he alters his appearance to school-age and decides to accompany her back to school.

Tsuji, a high school student whose sister was killed by a spirit several years before the beginning of the story, joins his school's Paranormal Research Club after hearing rumours of its president being a brilliant exorcist, hoping to gain the skills necessary to avenge his deceased sister.

From Peach Butts:

Amano Ichigo is a 14-year-old cake lover. After meeting a lecturer, Henrie Lucas, at a cake buffet, she enters St. Marie Academy - a school that raises and cultivates patissiers. Not only is she placed in the elitist group with three princes of sweets, but she also meets sweets spirit Vanilla on her first day of transfer. Ichigo is air-headed, a total klutz, and a complete novice at cake making, but she's trying her best mastering one at a time in order to make her eaters happy.

Sketchbook revolves around a group of high school students who are members of the art club at their school. The plot follows a slice-of-life style via the students' experiences at school through the club. The main character is a shy, quiet girl named Sora Kajiwara who goes through life at her own pace. She tends to look at the little things in life, and is often in awe of the simpler things. Sora knows several stray cats around her town and has given them names.

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?"...?!

It's April of my third and final year in high school... But the beautiful girl I have a crush on is my best friend's girlfriend. Thus begins my year of treading on the dangerous ground...

A story of youth and sensuality. A thrilling real high school love story! High schooler Nachi Shinohara is a social butterfly. He can get along with anyone. On the other hand, there's the lone wolf, Takizawa Yuuri. A chance exchange of words leads to a relationship that no one knows about.

A boy who used to be abusive to girls wakes up one day as one.

“I'll go back being a boy soon,” he thought, however that was not the case. Follow Akira as he grows and learns little by little to accept the puzzling changings in her surroundings and her heart.

Anyone who has done a "certain act" in school will become unable to take off their underwear. The only one who can undo that curse is Kamite.

Yuji's girlfriend Misaki may seem hard and cold on the outside, but inside she's actually soft and loving. As they prepare for their high school entrance exams, Misaki decides that they should temporarily cut off all their dating activities. Will they be able to study hard enough through this period to get into the same high school?

While bicycling to school her first day as a high school student, Renge Ohyama meets a weird girl who on closer inspection appears to be a life-sized doll--not an advanced robotic creation or even a magical doll. Rather, a scary looking middle aged man controls her movements, puppet-like, and speaks for her via ventriloquism. Unfortunately, this perverted-seeming old man and his doll happen to attend her new school. Even worse, is in the same class and sits right behind her. And it seems the doll wants to be friends?!