An official spin-off doujinshi to the "Oniichan wa Oshimai!" / "Oniichan's End" series. Features the crossdressing story of Minato-kun, a boy that appears in the Onimai series.
An official spin-off doujinshi to the "Oniichan wa Oshimai!" / "Oniichan's End" series. Contains three short comedy stories set in Mihari's research laboratory.
Having been feminized by a suspicious drug given by his little sister, what fate will Oniichan face...!? (The manga parts of RJ247862, RJ273796, and RJ296502, bundled together!)
Ouka Akikaze is an ordinary girl who dreams of becoming a super ninja! During her training, however, she gets scouted by an idol producer from kir@i Production!