Nono Nekomiya, Makoto Yuki, Iori Yuzuki and Matsuri Amachi all used to attend the same school. As close friends they spent their days in peace together as part of the light music club. One day, the school they attended closed down. All students had to transfer, making the four friends end up at different schools. Before they left, they placed a time capsule under a tree at their old school, promising to meet again, with Matsuri running off in bitter anger. Upon returning on the promised date, 3 years later with no contact in between, they find their time capsule has been dug up and turned into a lost and found game by an old teacher of theirs. While following clues left by the teacher, the four begin to remember past memories of life at the school as well as old feelings they may still have for each other.

Okuno Ryouko and Saeki are quiet normal students. But only at the surface. At university, they both feel out of place; so, Okuno visits a S&M club after classes. Saeki happens to visit this club as well; rather than participating in the activities like Okuno, he is there to play music. When they both meet there, they seem somewhat attracted to each other. But will this attraction last, when they come to know about each other better? Will love be able to bloom?

Mikio teases his neighbor Mariko a flat-chest and she calls him a midget. When one day Mikio turned miniature and ended up in Mariko's care, they discover how wrong they are about each other. (From Manga-Updates)

Meat, trainer to the great Choujin superhero Kinnikuman.He thought his job was done helping his greatest subject become a master Choujin and king of his homeworld. But...what if upon waiting for his next subject,the little trainer was sent to another world... where Kinnikuman has yet to become a great hero yet... and is...female!? Welcome to the world of Kinnikuman Lady!

Shota Iijima picked up erotic books during his childhood and suffers from a severe foreign sister fetish. Thereafter, from the years between his age of 12 to 15, he masturbated 999 times. For his 1000th round of masturbation, he had been transferred to a different world and is sold as a slave.

Naoto, who gets treated terribly by his parents, has Naruko, a beautiful lady, show up at his doorstep and starts living next to him as his neighbor. Naruko seems to be kindly accommodating Naoto, but her actions are somewhat "unnatural"... (Source: Kadokawa, translated)

Hikaru finds her little sister Akane irresistible, while Akane sees her big sister as nothing but a worthless pervert. Meanwhile, Hikaru's friend Shinobu, subtly vies for her (Hikaru's) attention while trying to help her deal with her siscon ways.

Transformation master Sneagator teaches Stecasse King the secrets of transformation.

Hasuno Miu, a high school teenage girl, loves her big brother, Keiichiro, and believes he is the gentlest and kindest person ever. Miu learns that there is a suspicious pervert lurking around the community and, to her surprise, stumbles upon a couple that matches that description. Miu escapes back to her house only to find that the man and the woman is none other than her brother Keiichiro and his summoned demon sex slave Manimani. It turns out that Keiichiro is a magician that was able to summon Manimani from the depths of hell. With everything she thought of her brother shattered into oblivion, Miu has no idea what to do.

Ao Minato, a young man who murders his stepfather who repeatedly abused his family, ends up in a juvenile detention center. However, the sister he was supposed to protect commits suicide due to her suffering, and their older sister Akane has gone missing. Ao arrives at a certain shrine and prays for his sister's safety, his only hope, and vows to the god that he will do anything for that, but... The blockbuster panic suspense "Gyakusatsu Happy End". The new chapter has finally begun. (Source: Young Animal Web, translated, edited)

A spinoff of Kono Suba featuring Dust as the primary protagonist, taking place around volumes 1-4 of the main series.

Naruto Wataru is a prominent student that belongs to the art club of his school and is the inheritor of a large fortune. Kachiwagi Chikako, Naruto's friend and long time admirer suddenly learned that Naruto had a key of an hotel. Chikako and her inseparable best friend Tateba Tomone try to find out just what is that key supposed to be for. Once they investigate, they realize that it's the key for a Love Hotel room, and furthermore Naruto is outside the hotel with Wakatomi Hatoko Sensei who tutors Naruto; at first they are appalled upon seeing the facts, however Hatoko Sensei guarantees that nothing suspicious is going on, the room of the Hotel is actually Naruto's private studio and second home but the fact that every draft that Naruto draws is about Hatoko Sensei, coupled with how much attention he puts on her are just too suspicious facts; and thus Chikako will embark in her own personal crusade meant to stop any improper behavior from happening between Naruto and Hatoko Sensei. Before long, Tomone will also take a personal interest in keeping Naruto out of any strange relationship with any other girl. With this the quartet will spend more and more time together, and before long feelings between these four will grow out of control but will any of these feelings reach their target?