Goryo Daisuke is still unsure about which club to join. When he meets the three girl members of Mysterious Research Club while looking for the school's warehouse, he gets hypnotized to sign the registration form. Suzu who is obsessed with scary curses, Chiaki who only relies on her monstrous strength to perform dangerous magic tricks, and Kotone who can control people by hypnosis.

Our young protagonist faces the greatest challenge of his time... babysitting and rehabilitating three massive perverts. Their rich father has given him the arduous task of turning them into three young, refined ladies.

But don't sweat the details. You're here to self-insert, right? Just pick your waifu: masochist senpai, nympho classmate, or exhibitionist kouhai.

This is the Ayase route of the Oreimo storyline.

Nico specializes in digging, and he used to bother his parents every day by destroying the walls and floors to run outdoors. Nico lives in Teo Village, and one day while hanging with friends, Nico ends up getting into a bit of trouble. This tricky spot is what sets Nico off on his grand adventure.

Amelia, who dreamed of becoming an alchemist and worked hard, became the youngest alchemist in history to be appointed court alchemist.
However, she was harassed daily in her work at court.
In addition, her fiancé broke off the engagement and she has been exiled from court.
Amelia, who has lost everything, finds happiness in a new place with her childhood friend Thomas, with whom she has reunited...?

From Yen Press:

Accepted to a high school specializing in the arts, Yuno moves into a nearby apartment complex to make her commute easier. Just a few days into her new routine, she quickly discovers that creativity doesn’t end with the art school bell! Her neighbors — Sae, Hiro, and Miya — are all fellow students, and each has her own hilarious quirks. And eccentricity clearly rules this school; Yuno’s homeroom teach is a cosplay otaku and the principal is just…weird. Will the quiet Yuno be able to handle this creatively kooky cast of characters?

Konakai Futaba loves her older sister more than anything else in the world. Kind, beautiful and intelligent, Ichina was everything that Futaba wished that she could be... she even encouraged Futaba when she was feeling down. As such, Futaba went to the same highschool as Ichina, hoping to be reunited after two whole years of being apart, but sadly Ichina has completely changed from the sweet, gentle sister that Futaba remembers.

Space is mainly inhabited by three different groups: the Federation, which is the real government; Various pirate clans, which use special techniques and magic to dominate the frontier; and the outlaws which are just about everywhere in between. There are also various alien races and empires which sort of fall within this category. It is on this frontier where Gene Starwind and his 11-year old partner Jim Hawking, freelance bounty hunters and odd-job takers extraordinaire, live and work. Until they happen to take a job from a mysterious woman named Hilda. In no time flat they're up to their ears in pirates...

The story of an Annoying Senpai and his Kouhai.

Jae-Hee is an addict of the trash game Infinite Dia. One day, she finds out that the developers of Infinite Dia are releasing a new gacha game called Terrarium Adventure.

Wanting to get the final secret achievement before the game is discontinued, she puts all her time into Infinite Dia. When she finally succeeds in getting the secret achievement… She wakes up to find herself in a world of fantasy and magic!!

Now, not only does Jae-Hee needs to figure out this entirely new world, she also needs to enlist of help of dryads to stop the world from burning!

This is the legendary Go Nagai's breakthrough work. Harenchi Gakuen is an elementary school whose teachers and students are all perverts. Boys peep girls changing. Girls pull up their skirts and show off their panties. Actually, it's not as evil as you imagine. They're like cubs playing together. It's only pre-school eroticism, nothing sexual. In spite of that, Harenchi Gakuen became a sensation. Parents, teachers, and politicians hysterically attacked the comic's immorality.

Charlotte Eleanor is an Archmage that once saved the world. Using her magic to die, she instead, reverses the age of her body to a young child and starts a second life as Aria Lissen. She had a fulfilling life in her first lifetime, except for one tiny regret. In this new life, Aria is determined to find and live for that one thing she never had... LOVE.

However, she comes to find out that her 'demise' was nowhere as inconsequential to the world as it seemed, and certainly not to her mighty Five Disciples, who aren't coping that well.

Famicom Rocky is basically Rocky the movie, but with old NES-era video games. The series stars an ineloquent brute of a protagonist who has long, extensive training montages so that he can dramatically compete against vaguely imposing rivals who, for narrative purposes, are deluded into thinking they're better at video games than him.

1. Sakura no Hanasaki Kukoro

2. Family Plot
Losing your memory is not only painful for themselves, but also for people who love you. Hideyuki, a photographer, tries to find the memories that bind him to his son and the woman he loved.

3. Taxi Driver
A story about a vampire who works as a night taxi driver. His victims are his clients...or so it should be, for his good heart often remains with dry mouth, and when a young girl asks for his help, the real trouble begins.

4. Shoujo no Kisetsu - Summer Dream
Misako was always afraid of water, a distant memory that resurfaces in her dreams, until she finds herself trapped in a strange realm, somewhere between her dream and her past....

The story centers on an ordinary high school boy named Keita Amano. His hobby is video games, but apart from that, he has no conspicuous traits, and has never been in love. As Keita continues his gaming life, he suddenly becomes involved with Tendou Karen, the most beautiful girl at school and the president of the school's video game club. She shocks Keita when she asks him to join the video game club.

Watch how their relationship evolves and becomes more complicated, especially when other gamers come into the picture, creating all sorts of misunderstandings and drama.

A romantic comedy where Tomoyuki is married to a demon for a wife, a literal honest to goodness demon.

Sojiro, employed at a confectionery company, and his wife, Makoto, have joyfully opened their home to a foster child, Kuriko. But there's a catch – Kuriko seems to communicate mostly with a simple "mhm," perhaps due to nerves. Sojiro, who has vague memories of his own early childhood, struggles to bridge the gap between him and Kuriko. However, Kuriko harbors a deep fascination with Sojiro's special talent – crafting delectable sweets! The art of confectionery becomes the thread that weaves this family closer together. Join this heartwarming journey of a seemingly disconnected parent and child as they evolve into a bonded "family".

Na Kang Lim, a high school student who enjoys reading webtoons, experiences a strange event one day when the female lead from his favorite webtoon appears before him. Even more surprising, the same incidents that put her in danger in the webtoon start happening in real life. The problem is, there's no protagonist in the real world to save her! Ultimately, Na Kang Lim takes on the role of the protagonist, looping through time to save her.

The trials and tribulations of a single father, who one day meets the reincarnation of his deceased wife.

After being in a middle school full of Yankees and being humiliated by them all the time, Momose decides to change her appearance when entering high school; however, her clumsiness keeps getting the best of her, so she struggles to fit in. All she wants is to get away from the bad guys and it seems like she finally found a club to belong to, but the only other member of this club is not quite what he seems...