Ota-kun, the otaku gets transported in time to 10 000 B.C., where he conquers unsuspecting prehistoric women with his knowledge of modern sex.

Japan has instituted a universal conscription policy for their military. With their parents inducted into the army, brother and sister Takumi and Kuriko are free to satisfy their forbidden lusts. Until their...

A guy meets his classmate at workplace, they go to drink together, talk about past, this and that happens and they end up in love hotel.

1-4. OtaPuri 5. Love x Cheer 6. Satou-san no Onegai. (Request for Mr. Sato.) 7. Satou-san ni Onegai. (Ask Mr. Sato.) 8. Keikakuteki na Kanojo (Her Plan) 9. Tenshi na Kanrinin (Manager Like an Angel) 10. Paideka

1. Mayonaka no Keiyaku to Kuroi Neko (真夜中の契約と黒い猫) 2. Mayonaka no Yuuwaku to Kuroi Neko (真夜中の誘惑と黒い猫) 3. Poolside Love (poolside Love) 4. Soba ni Ite Hoshii kara (そば...

1. Sono Aizu. (The Sign) 2. Nouhin. (Delivery) 3. Suki na Hito. (My Love) 4. Dokusen Yoku. (Monopolistic) 5. Chiryou. (Treatment) 6. Amanojaku. 7. Anata no Ichiban ni Naru Tame ni. (To Become Your Number One...

Collection of Stories / Oneshots 1-2. Adventure Lodge 3. AV Shop no Yoru no Yume 4. Himitsu no Isogai-san 5. Usagi Oishi Kameyama 6. Seaside Service 7. Otaku Boin' na Ane no Taida na Nichijou. 8. Neko Cafe ...

Official Korean Translation

• 射精しちゃえ!先生! • 西中有貴の悩み • 黒ギャルちゃんとメガネくん • その後の黒ギャルちゃんとメガネくん • にゅうげーむ • What I Can Do / Bo...

Originally published on Pixiv: Part 1, Part 2, Part 3, Part 4 Parts 1-3 were later re-published as one book by the artist under the circle Happa-ya.

Kuroi is a wannabe yaoi manga artist, seeking to help the fledgling manga club with his debut doujin. But, Donbe, a hot gyaru walks in on him drawing and points out that the way he draws dicks is “weak”....

1-2. Futari Kurashi 3. Otagaisama 4. Ame no Hi no Gogo 5. Netemo Sametemo 6-7. Hard Luck Woman 8. Glitter Dolls 2

1. Akuma ga Kitarite Yome ni Naru 2-3. Otanetsuke 4. 1LDK 5. Chinnyuusha wa Santa Claus (The Intruder Is Santa Claus) 6. Gochounai Keiji: Kairanvuan 7. Tamanegi Lovers (Onion Lovers)

Once Kirari found out her classmate Keita is actually a famous doujinshi artist, she instantly knew she wanted to get a picture drawn by him. But, since he's a busy man, she's got to pay him back in kind fi...

1-2. Ota x Gal 3. Kyouei Lover (Swim Team Lover) 4. Futari dake no Himitsu♥ 5-6. Papa Ijou Koibito Miman 7. Sakura-hime 8. Mirei Route 9. Haruhi Route

After witnessing his favourite idol sleeping with another man, Ota slips through a crack in time and finds himself transported to 2200A.D. After being confused for as a Sex-Bot, Ota must join hands with the...

1. Ota Imouto ga Namaiki Sugite Meiwaku Sugiru (My Otaku Little Sister Can't Be This Annoying) 2-3. Aniue ga Kedamono Sugite Meiwaku 4. Futsuka de Seito Kaichou wo Otosu Houhou 5. Triangular 6. Wagamama Ali...