[Studio Wallaby (Various)] Dejiko no Naisho Nyo (Di Gi Charat)
[Junk Center Kameyoko Bldg] Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite o Shiteiru Hanashi.
Boku to Kanojo no Hikakuteki Naisho no Nichijou Conclusion
[Asahina Makoto] Naisho no Natsuyasumi Ch. 1-2
(SC30) [P-Forest (Hozumi Takashi)] Otome no Naisho Nina-chan to iro iro... (Mai Otome)
Naisho no Gohoubi
[Inomoto Rikako] Naisho no Onnanoko
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [English]
Tomodachi no Otou-san to Naisho de Kozukuri Shichaimashita
Okaa-san Sore wa Mazui desu yo! ~Tsuma ni wa Naisho de ED Kokufuku Renshuu Sex!?~
(Reitaisai 15) [Green tea Lab (midarin)] Aya-chan no Naisho no Micchaku Shuzai (Touhou Project)
Abby to Naisho no Hamedori
(COMIC1☆8) [Nipopo Crisis (Genka Ichien)] Tanoshii Koto o Naisho ni Shiyou. Kanzenban (Zettai Muteki Raijin-Oh)
Motto Kakurenbo
(CR26) [Studio Wallaby (Jacky Knee de Ukashite Punch x2 Summer de GO!, Kokuden Kadotake, Seishinja)] Tifa no Naisho (Final Fantasy VII)
[Magono-Tei (Carn)] Kareshi ni Naisho de 5 ...Dekichaimashita. | Keep This A Secret From My Boyfriend 5 - ... I Actually Did It. [English] {Doujins.com} [Digital]
[PuruMetal] Isekai Tensei Shita Saki de Party Member Zenin to Naisho de Ecchi Shiteru Neet (Kono Subarashii Sekai ni Syukufuku o!) [Digital] [Chinese] [爱弹幕汉化组]
Yamitsuki Naisho Ecchi
(C90) [Chokkaku Highball (Naokado)] Princess no Naishona Kao (Go! Princess PreCure)
Kenpeitai ni wa Naisho da yo!
[Minamida Usuke] Takashi-kun no Mama to Kakurenbo Ecchi | Having Hide and Seek Sex With Takashi-kun's Mom [English]
(SC33) [Human High-Light Film (Shiosaba)] Honey no Naisho 3 (Cutey Honey)
Kawaii wa Naisho
Naisho no Makinami | Makinami's Secret
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi) [English]
Takashi-kun no Mama to Kakurenbo Ecchi | El Lascivo Juego a las Escondidas de la Madre de Takashi-kun
Kareshi Mochi no Kurokami Irojiro Binyuu Joshidaisei ga Cunni dake Mikeiken de Kare no Tomodachi ni Naisho de Hatsu Cunni Sarete Amari nimo Kimochiyo Sugite Sonomama Nagasare Sex Shita
(C93) [Tatsumaki Koutei (Takei Tsukasa)] Mifune-san to 3-kai Ecchi Shinai to Derarenai Heya de Naisho no (THE IDOLM@STER CINDERELLA GIRLS)
Motto Shitai Joshidaisei ga Kare ni Naisho no Kankei ni Hamacchau Ohanashi
(C88) [nothingfades (Amane Nekoko)] Naisho no Hajimete Kouhen (PriPara)
[Hard Chrome (hardcrom)] Naisho no Step (THE IDOLM@STER CINDERELLA GIRLS)
Boku to Kanojo no Hikakuteki Naisho no Nichijou Chapter 1
Kuttsukiboshi -Naisho no Oshigoto- | -Secret Work- {Hikikomori Honyaku}
(SC36) [Lezmoe! (Oyu no Kaori)] Zettai Naisho! Himitsu no Otomari nano (Mahou Shoujo Lyrical Nanoha StrikerS)
[Norakuro Nero] Osananajimi Love Control Kouhen(Soku Hame Kanojo Kareshi ni Zettai Naisho no Nakadashi Koibito Keiyaku)[Chinese] [Digital]
Kareshi ni Naisho de...
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica) [English]
[Tairaazuma-dou (Azuma Taira)] Kare ni wa Naisho ni Shite ~Konya, Joushi ni Ryoujoku saremashita
(C78) [Human High-light Film (Shiosaba!)] Naisho no Asuka (Neon Genesis Evangelion)
[SPARK UTAMARO] Immoral Ichigou
[Pin-13 (Juusangatsu)] Futari no Naisho (Kizuato) [Digital]
Ririn-san no Naisho no Kao to Daiji na Oheya
Naisho no Kagai Jugyou Nyuumonhen
[Usi] Otto ni Naisho de Ajimi Shite Ch. 1-4
[Kitakata Kuniaki] Himitsu no Keijiban H na Onna no Naisho Banashi
(C94) [Critical Hit! (Zetz)] Mutsuki no Naisho (Azur Lane)
Dejiko no Naisho-nyo
Naisho desu yo
[Babymaker (Beco)] Naisho no Kozukuri 2 | Secret Lovechild 2 [English] [MintVoid]
[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen | Cumming In Mom Daily Dad Doesn't Know We're Having Creampie Sex [English]
Maya-chan to Naisho
[Pakuchi (Nishiki Yoshimune)] Oya ni Naisho de Oppai shite kureru Katei Kyoushi no Onee-san