(C89) [Coopy (Yomogi)] Chino-chan to Naisho no Obenkyou (Gochuumon wa Usagi desu ka?)
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [English] {forbiddenfetish77/cocblockula}
(SC59) [Marked-two (Maa-kun)] Mikan no Naisho (To LOVE-Ru)
Naisho no hanashi
(SC24) [Naisho No Usagi Koya (Usakun)] Gohoubi Suimingu
Isourou no Saenai Boku ga Kyawaii Bampire Musume o Naisho de Haramaseta Wake
(Puniket 12) [England Peach (Eikokukan Momoha)] Papa to Naisho (Ojamajo Doremi)
[MARUTA] Boku to Kanojo no Hikakuteki Naisho no Nichijou (Complete)
(SC34) [Titokara 2nd Branch (Manami Tatsuya)] Naisho no Kimochi 2 (Zero no Tsukaima)
(C93) [Zabuton Makura (Nakai)] Anoko ni Naisho no Uchiawase (THE IDOLM@STER CINDERELLA GIRLS)
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [English] [AlphaYang]
[Kaiduka] Iede JK to Pet Seikatsu ~Kazoku ni Naisho de Dokodemo H~ Kanzenhan [Digital]
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu)
Osananajimi ga Naisho de Yatteiru SNS o Mite Kofun Shite Shimau Ore!!
[Usi] Otto ni Naisho de Ajimi Shite Ch. 1-9
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho (Cutey Honey)
[Ponsuke] Naisho no Kaihou (COMIC LO 2017-12) [Chinese] [腥海社] [Digital]
Yamitsuki Naisho Ecchi
(COMIC1)[Alpha to Yukaina Nakamatachi] Naisho no Oshioki (Quiz Magic Academy)
Naisho no Yofukashi
Yorita Yoshino to Naisho no Hikaeshitsu
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara) [English] {/u/ scanlations}
ENEMY CONTROL
(C88) [Akuten Soushin (Kokutou Nikke)] Tenryuu Onee-chan to Naisho no Yasen Enshuu!! (Kantai Collection -KanColle-)
(SC26) [PLUM (Kisaragi Kanna)] Naisho! (Sukatto Golf Pangya)
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica) [English]
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
Naisho no Happyoukai. - A Secret Recital | 秘密的发表会
(C57) [Studio Wallaby (Kokuden Kadotake, Shijuukara, Hontai Bai)] Shinobu no Naisho Love Hina Books (Love Hina)
[Tawara Hiryuu] Kanojo ni Naisho de (COMIC Tenma 2015-03) [Chinese] [黑条汉化]
Naisho no Nail
Onee-sama ni wa Naisho
[Pakuchi (Nishiki Yoshimune)] Oya ni Naisho de Oppai shite kureru Katei Kyoushi no Onee-san
[Ookami Uo] Yuutousei | The Honor Student ([Ryuushutsu] JSJC Naisho no Jian) [English]
Naisho no Kojin Shidou 2
[Tukimi Daifuku] Mama ni wa Naisho
[Studio Wallaby (Various)] VITAMIN-B5 1/3 Ruri Ruri Naisho no Gakuen Nikki (Kidou Senkan Nadesico)
Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 3 | My Famous Girlfriend... Is An AV Pornstar Behind My Back: SatomixSatona The Sequel Ch. 3
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami) [English]
(C83) [Mama ni wa Naisho (Purukogi Beach)] Enshoku Niku Sakura - Coquettish Flesh Cherry (Dead or Alive)
Kareshi ni Naisho de2 Nama Rankou...Shichaimashita.
Kareshi ni Naisho de 5 ...Dekichaimashita. | Keep This A Secret From My Boyfriend 5 - ... I Actually Did It.
Naisho no Otogibanashi 2
[Itsuki Kuro] Yamitsuki Naisho Ecchi (COMIC BAVEL 2020-02) [Chinese] [Digital]
Naisho no Kagai Jugyou Ouyou Hen
[ASIANBOY (Hasemi Ryo)] Takao-buchou to Tsukiau Koto ni Narimashita (D-Frag!) [Digital]
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian
[Himeya (Abe Inori)] Tsuma no Hajimete no Otoko ~Otto ni Naisho no Saikai Koubi~ [Chinese] [無邪氣漢化組] [Digital]
Kareshi ni Naisho de 4 Aijin... Nacchaimashita. | Keep This A Secret From My Boyfriend 4 - I Became... A Mistress.
(COMIC1☆9) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- | It's a Secret! 2 [English]
Naisho no Kagai Jugyou
(CCTokyo132) [Kitei (Naoki)] Naisho Banashi (Kuroko no Basuke) [English]
[Henreader] Naisho no Date Plan (COMIC X-EROS #37) [Chinese] [無邪気漢化組]
Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~
[Hanatsuduri (Tsuduri)] Naisho ni Shitete (Kimetsu no Yaiba) [Digital]
[Koari] Naisho no Hokenshitsu (Seifuku Musou Houkago Tokubetsu Koushuu Hen) [Decensored]
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [English]
Papa ni Naisho no
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. | I've always kept this a secret, but the truth is, I have one [English] [UsagiTrans] [Digital]
Chika-chan ni mo Naisho no Himitsu
(SUPER23) [Strawberry (Ichigo)] Tousan ni wa Naisho ni Shitete (Shingeki no Kyojin)
(Reitaisai 14) [Rocket Chousashitsu (Koza)] Kazami Yuuka to Naisho Play (Touhou Project)
Kyonyu Oyako to Naisho no Tanetsuke Kobi
(CT23) [ENJOY MIX (Tokiai Haya)] Papa ni Naisho no (THE IDOLM@STER CINDERELLA GIRLS) [English]
(C82) [Natsu no Umi (Natsumi Akira)] Mama ni wa Naisho no XXX (Smile PreCure!)
[Musashimaru] Touzen Imouto ni wa Naisho de | Keep It A Secret From My Sister Of Course [English]
Ikenai Koto wa Naisho de Suru Mono
[Mita Kurumi] Naisho no Photograph (COMIC ANGEL Club 2010-09)
[Konohana] Naisho no Jikan | Secret Times (COMIC Megastore 2009-04) [English] [Hentai from Hell] [Decensored]
(C89) [Tatsumaki Koutei (Takei Tsukasa)] Lecia no Naisho Naisho no Chitsujo (Granblue Fantasy) [English] {Hennojin}
Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 2
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS)
[Kuronisiki (Takaharu)] Onee-sama-tachi niwa Naisho de Senkan ni Narimasu (Kantai Collection -KanColle-) [Chinese] [koolo個人漢化] [Digital]
Naisho no Futarikiri | 둘이서만 비밀스럽게
(Hataket) [ANGYADOW (Shikei)] Alice no Naisho (Sword Art Online)
[Aichi Shiho] Okaa-san ni wa Naisho (Otokonoko HEAVEN Vol. 25 DMM Tokubetsu Ban) [English] {Shotachan} [Digital]
Naisho No Orusuban
[ASIANBOY (Hasemi Ryo)] Mutsu-chan to Hiasobi Suru Hon (Kantai Collection -KanColle-) [Digital]
[Maruta] Boku to Kanojo no Hikakuteki Naisho no Nichijou Chapter 2 (English)
(Panzer Vor! 11) [Nazunaya Honpo (7zu7)] Erika no Naisho. (Girls und Panzer)
[Morishima Kon] Naisho no Gohoushi + Bangaihen (Oneshota Dish) [English] {Hennojin}
(C83) [Honey Bunny (Kohachi)] Naisho no Nurse-san
Boku to Kanojo no Hikakuteki Naisho no Nichijou Conclusion
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara)
(Shota Scratch 18) [Usamimi Zukin (Kosuzu)] Himitsu no Naisho (The Legend of Zelda) [English] =SW=
[Shirasudon] Dosukebe Enkou Gal no Naisho Ecchi
Naisho no Ouma-san Gokko | Secret Horse Play {doujins.com}
[Norakuro Nero] Soku Hame Kanojo Kareshi ni Zettai Naisho no Nakadashi Koibito Keiyaku
(C95) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu 3 (Love Live! Sunshine!!)
[Studio Wallaby (Various)] Vitamin-B5 1/4 Ruri Ruri Naisho no Maid Nikki (Martian Successor Nadesico)
[Pony-R] Kyonyu Oyako to Naisho no Tanetsuke Kobi (COMIC Mugen Tensei 2021-05) (Chinese) [Banana手工漢化] [Digital]
(C94) [KURUBUSI-KAI (Dowarukofu)] Mikan no Naisho no Shuumatsu (To LOVE-Ru) [English] [biribiri]
(C78) [Titokara 2nd Branch (Manami Tatsuya)] Ookami-san to Naisho no Doku Ringo (Ookami-san to Shichinin no Nakama-tachi)
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
(COMIC1☆3) [Human High-Light Film (Shiosaba)] Naisho no Honey (Cutey Honey)
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami)
(SUPER24) [Rolling box (Kanaru Tabito, Shiina Akira)] Kyosuke ni wa Naisho (THE IDOLM@STER SideM)
Ninkatsu Nisshi Otto ni Naisho de Seishi Bank Tsukatte mita
Naisho desu yo
Naisho no Cute Boy
[Oomichi Imuta] Naisho ni Shite ne | Keep this a Secret, okay (Futanarikko High!) [English] [UsagiTrans]
(COMIC1☆10) [Death Para (Tamaki Kurou)] Kitakami-san to Naisho no Naisho (Kantai Collection -KanColle-)
(C86) [Mama ni wa Naisho (Plasma Beach)] Kinniku Chocolate (Samurai Spirits)
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer) [English] [/u/ scanlations]
[Mizuyuki] Futari no Naisho no ××× (COMIC HOTMILK 2016-06) [Chinese] [無邪気漢化組]
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | The Secretive Shinomiya-san [English] {Hennojin}