[Maeshima Ryou] Gender Free (Kirakira Otona Lesson) [English] {Hennojin}
[Maniac Street (Black Olive)] Otona Asuka (Neon Genesis Evangelion)
(CCOsaka97) [Otonashi-ya (Otonashi Noah)] RinYuki Enyoshou (Ao no Exorcist)
(COMIC1☆11) [Hi-PER PINCH (clover)] Otona no Japari Manko! (Kemono Friends) [English] [/u/ scanlations]
(COMIC1☆10) [Usubeniya (Usubeni Sakurako)] Murakumo, Otona ni Naru. (Kantai Collection -KanColle-)
[Otonashi Kyousuke] Koukai Sounyuu
[PNO Group (Hase Yuu)] Jervis to Otona no Darling Kankei (Kantai Collection -KanColle-)
(C89) [Rokusyoku Mikan (Tachiroku)] Shounen Teitoku ga Otona ni Naru made... (Kantai Collection -KanColle-)
(Reitaisai 12) [*Cherish* (Nishimura Nike)] Otona/2 (Touhou Project)
(COMIC1☆13) [Furaipan Daimaou (Chouchin Ankou)] Otona no Okusuri Produce!!! (THE IDOLM@STER CINDERELLA GIRLS)