Karen, a beautiful and popular university student who's involved in a rivalry with another pretty girl, visits her childhood friend with the goal of losing her virginity so she can keep up with her rival.

Collection of short stories: Mune Hatte Ikou!A girl who is upset about her big breasts remains anti-social until her childhood friend comes over.Suiseikei Kareshi (Comet System Boyfriend)Dojikko Wakaoku-sama...

"Satoru-kun, I want to see the stars like before just one more time." Being bedridden with an incurable disease, Haruka cried out to me for a wish. We slipped out of the hospital and began the final journey to...

From EPIC WORKS: Kamishiro Yutaka was living a dull life, but suddenly god blessed him with a "fiancé". A fiance that Yutaka finds mysterious! Moreover, things start to change with unexpected developments. Who...

Collection of short stories. Includes the first part of Ninpou Midare Karakuri, adapted to an OVA in 1996, known outside of Japan for the Karakuri Ninja Girl, and which would get its own Tankobon in 2002.

A loli themed artbook with a short story at the end. "Original" doujinshi by the circle Moe Shoujo Ryouiki.

A story about two rival girls who are each the "princess" of their respective otaku circles, coming on to their coworker, the protagonist. (Source: Melonbooks) Original Doujinshi, Released at Comic Market 88.

Sugao no Kanojo (素顔の彼女) 2. Juunin Toiro no Chichimoyou (十人十色の乳模様)Nokorimono ni wa Ai aru (残りモノには愛ある)Hanahachiri Naokaoru (花散尚薫)Tasogare Kozutsumi (たそがれ小包)Hisureba Hana (秘すれば花)Onee-chan ga Shite Ageru...

He was friends with one girl since middle school, but for some reason she got angry when another girl talked to him during his birthday, what will he do?

Haru is visited by his next door neighbor and childhood little sister, Sawaki Sarasa, who gives him a scarf she made for the year before. Then she asks what present he'd like to have this year; cuteness ensues.

A strange disease has spread in a certain village. People
believe that impregnation is a curse from a god, and when they prepare a man as a receptacle for the curse, the man is cursed by an impregnation god...

Love Me / Omoi Omoware 2. ShirotaegikuDusty MillerLinariaDrunken Flower / Yoi no HanaWhen You Take My Hand in Yours / Te to Te wo TorebaPlease Don't Tease Me, Tachibana-san / Karakawanaide Tachibana-sanBe...

When Daiki comes home from work, he finds a beautiful girl sitting in front of his apartment! For some reason, she knows Daiki's name; It turns out, that she was his neighbor during her childhood, and her name...

An original doujin manga for adults about flirting and making out with a tanned (one-horned) oni girl. (Source: Melonbooks)

Aromatic Athletic 2. Poyopoyo Girl MelancholyTrauma OverwriteFrustration HoldSerpentine LovePre-paid Honey7-8. Senpai HuntingWatashi no Gardner (My Garden)Hebereke Teacher (Drunk Teacher)

Mitsuharu has always been taking care of by his older sister since long ago. Being that close it came as no surprise that Mitsuharu admires his sister Fuuka very deeply.... But it would be ok it that feeling...

A manga about having sex with an eccentric girlfriend who wears a mask, because she's too embarrassed to show her face.

The Present Is a Stranger's Cock 2. Erotic RecordingGraduation and LossSibling UnionCompany House Wife: Youko - Afternoon Cowgirl Position LessonBus Tour Guide GangbangGang Rape FestivalWet Tits Attack!3P...

A bittersweet love story with a tan-skinned priestess deep in the mountains. A woman full of mysteries as he indulges himself in her voluptuous body. Who is she? The secret of the lewd tattoo hidden under her...

The protagonist has just found a new job, and will be leaving her prefecture in the spring to start it. She heads to the rundown shrine she always frequents to share the news, but finds a mysterious, weak...

Original work on Pixiv

There is a TL and R18 version.