In the Otona OS series: • V.1 - Otona OS• V.2 - Otona OS 200X• V.3 - Otone OS Home Edition• V.4 - Otone OS Nettouhen• V.5 - Otona OS No.7• V.6 - Otona OS 2/18• V.7 - Otone OS 5/18• V.8 - Otona OS 2/18 sp1• V.9 ...

Sasekko OSSasekko OS Service Pack 2Sasekko OS SP2/UPG

Original "Doujinshi"We have the child of a very influential family, Akina, who’s going out with Kouhei. Her father gave Kouhei one condition for going out with Akina, though. He has to get into a very...

This is a commercial side story for "Oshibana!" drawn by the author herself.Part 1 creatively (and erotically) fills in the blank that occurred during episode 20 of the main story between pages 19 and 20. Part...

Summoned to another world in order to defeat the Demon Queen, the Hero completes his quest and is sent back to his home world. As he waits for his beloved Princess to summon him back again, he receives a knock...

A guy is fascinated by a little girl that’s always in the public park. He lets her stay over at his place during a rainy day. Why? I think Oingo Boingo wrote a song that could best describe his feelings, but I...

Shion, a kunoichi of the Shirayuri Clan, is captured by the peerless beauty of the Kurohebi Shinobi Corps, Chikage. What fate awaits Shion behind enemy lines? (Source: MangaDex)

Pairing: Karamatsu x Osomatsu Reprinted in volume 1 of Monthly KaraOso Omnibus (scanlated from this version)