(SC49) [Baka to Hasami (Tsukai You)] Naisho no Tsuboeri Himitsu no Itsuki (Heart Catch Precure!)
(COMIC1☆11) [KURUBUSI-KAI (Dowarukofu)] Mikan no Naisho no Houkago (To LOVE-Ru Darkness)
(C85) [Roppongi Shinjuu (Lewis)] Full Volume Love (GJ-bu)
[Ookami Uo] Yuutousei | The Honor Student ([Ryuushutsu] JSJC Naisho no Jian) [English]
Naisho Zuma
Boku to Kanojo no Hikakuteki Naisho no Nichijou Chapter 2
(C85) [Yadokani Daikaiten (Kawamoto Yutsuki)] Naisho no Ecchi (Ro-Kyu-Bu!)
Boku to Kanojo no Hikakuteki Naisho no Nichijou Conclusion
[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen
(SC3) [Studio Wallaby (Deep Purple '72, Jacky Knee de Ukashite Punch x2 Summer de GO!)] Naisho no Azuki (Azuki-chan)
(COMIC1☆11) [ASGO (Zanzi)] Shiori Quest (Sakura Quest)
Nekonokone (Takeyuu)] Nekonokone Omakebon Vol. 9 (Kaguya-sama wa Kokurasetai) [Digital]
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara) [English] {/u/ scanlations}
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami) [English] [magiclamp]
(C81) [Gold Rush (Suzuki Address)] Ayasebon (Guilty Crown)
(C94) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu 2 (Love Live! Sunshine!!)
[Ponsuke] Naisho no Massage | Secret Massage (COMIC LO 2016-03) [English] {5 a.m.}
[Koneko Gumi, Shounen Marionette (Poron, Kuonji Shutaka, Namao)] Naisho no Otogibanashi [English] {Shotachan}
Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~
Oya ni Naisho no Iedex 5 - Futsukame Hen
LIP SERVICE 5
[Balpanther] Naisho no Undoukai (Puella Magi Madoka☆Magica)
(C93) [Fuketsudan (Chabo)] Shokujoku Seijo <Kouhen> [Chinese] [可乐X不咕鸟汉化组]
Shinomiya Kaguya o Goukan Shitai 2
[Naruto Kenkyu Sha (Hisakabe Oto)] Dare no Shiwazaka Wakarimasu? (GJ-bu) [English] {Hennojin} [Digital]
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi) [English]
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
[Musashimaru] Touzen, Imouto ni wa Naisho de [Digital]
[ShiraishiNsuke] Naisho no Ouma-san Gokko | Secret Horse Play (COMIC BAVEL 2017-01) [English] {doujins.com} [Digital]
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
(SC5) [Studio Wallaby (Deep Purple '72, Kura Oh)] Doris no Naisho (D4 Princess)
[entireCY (Koge Mochi)] Love Bubble (Uta no Prince-sama)
[fourthcape (Misaki Takahiro)] Sena to Naisho no Houkago (Boku wa Tomodachi ga Sukunai) [Digital]
Shinomiya Kaguya o Goukan Shitai | Rape of Kaguya
Kairaku Kyoshitsu Ch. 1-9
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho (Cutey Honey)
[Seiheki Master] Ne~e~n Tsugi no Tesuto de 0-ten Totte~e ♪ Josei Men'eki Zero no Gariben Danshikō ni Haken sa Reta Yūwaku Jokyōshi
Operation Fail - Arniro111
[Studio Wallaby (Various)] VITAMIN-B5 1/3 Ruri Ruri Naisho no Gakuen Nikki (Kidou Senkan Nadesico)
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian Ch. 1-5 [Chinese]
kaguyasamaha eros wo kojiraseteiru
(HaruCC20) [Mikazuki Shokudou (Kurosawa Ayuki)] Aniki ni wa Naisho da yo? (Daiya no Ace)
[Konohana] Naisho no Jikan | Secret Times (COMIC Megastore 2009-04) [English] [Hentai from Hell]
Zoku Tanetsuke Twins Namahame Aji Kurabe | Sequel: The Breeding Twins and the Bareback Taste Test
(brilliant days 3) [amuamu (Chimu)] Bokura no Naisho no (Ensemble Stars!)
P3
(C85) [furuike (Sumiya)] Off no Kongou to Naisho no Ohanashi (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
どうせ夢なら
Futari de Naisho no Ohanashi
[Mizuyuki] Futari no Naisho no ××× (COMIC HOTMILK 2016-06) [Chinese] [無邪気漢化組]
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer)
(COMIC1☆7) [Spec.C (Akeno Minato)] DokiDokiDocking! (Vividred Operation)
(COMIC1☆4) [Human High-Light Film (Shiosaba!)] Naisho no Makinami (Rebuild of Evangelion)
(C90) [Omocha Kaden (Beni Bana)] Himawari ni Tane (Vividred Operation)
Futari no Kankei
[OkayuShop (Okayu)] Mousou Ero Nikki (GJ-Bu) [English] [Koruchan] [Digital]
(C92) [Tenrake Chaya (Ahru.)] Matsurinoyoru no Naisho (Kantai Collection -KanColle-)
Akuma no Hanayome Shugyo
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
Implicity Ep.01-2
(C83) [Mama ni wa Naisho (Purukogi Beach)] Enshoku Niku Sakura - Coquettish Flesh Cherry (Dead or Alive)
(C93) [ParadiseGom (Gorgonzola)] Naisho no Ohime-sama (Dragon Quest XI)
Houhuku Douga #5
(C72) [kidnap company (Saitou Tsukasa)] Himitsu no Gashuu - Naisho no Jikan (Kodomo no Jikan)
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu) [English]
Rem-rin to Naisho no Oshigoto
(C90) [Shinobi-Rocket (Sasamashin)] Lady to Naisho no Yoru Sanpo (Kantai Collection -KanColle-)