(CR31) [Studio Wallaby (Various)] Rizell no Naisho (Rizelmine)
(C90) [Dragon Kitchen (Sasorigatame)] Rem-rin to Naisho no Oshigoto (Re:Zero kara Hajimeru Isekai Seikatsu) [Chinese] [空気系☆漢化]
Naisho Zuma
Mifune-san to Naisho no Sailor Fuku
Naisho no benkyou | Secret Study Time
(COMIC1☆8) [Nipopo Crisis (Genka Ichien)] Tanoshii Koto o Naisho ni Shiyou. Kanzenban (Zettai Muteki Raijin-Oh)
(COMIC1☆7) [Bakunyu Fullnerson (Kokuriu)] Naisho no Oshigoto (Bakemonogatari) [Chinese] [黑条汉化]
(Sennen Battle Phase 23) [Ushiromuki Zenryoku Shissou (Osame)] Ore-tachi Futari no Naisho-goto! (Yu-Gi-Oh! VRAINS)
[Dorachefu] Naisho no Zupohame Shinkon Life | The Secret Bold-Fuck in A Newly-wed Life (ANGEL Club 2018-11) [English] [seindryu] [Digital]
[Matsumoto Katsuya] Naisho no Mio Sensei | The secret Mio sensei (COMIC Masyo 2017-02) [English] [desudesu] [Digital]
(COMIC1☆3) [Human High-Light Film (Shiosaba)] Naisho no Honey (Cutey Honey)
[Kaitou Yuuhi] Naisho no Oshigoto (Otokonoko HEAVEN Vol. 24) [English] [mysterymeat3]
(C86) [Mama ni wa Naisho (Plasma Beach)] Kinniku Chocolate (Samurai Spirits)
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS)
(C89) [Coopy (Yomogi)] Chino-chan to Naisho no Obenkyou (Gochuumon wa Usagi desu ka?)
Dosukebe Enkou Gal no Naisho Ecchi
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
Maya-chan to Naisho
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project)
(SC33) [Human High-Light Film (Shiosaba)] Honey no Naisho 3 (Cutey Honey)
(C54) [Studio Wallaby (Various)] VITAMIN-B5 1/2 Ruri Ruri Naisho no Arbeit Nikki (Martian Successor Nadesico)
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san
(COMIC1☆4) [TRIP SPIDER (niwacho)] Naisho no Omamagoto (Fate/Hollow Ataraxia) [English] [desudesu]
[Kuku ya (ckj)] Naisho desu yo? Kald-san (Firis no Atelier)
(C88) [PINK CHUCHU (Mikeou)] Naisho no Shintai Sokutei (Gochuumon wa Usagi desu ka?)
(COMIC1☆6) [Mama ni wa Naisho (Purukogi Beach)] Tetsu Momo MANEATER (Tekken)
Kakurenbo - Hide & SeeK | 숨바꼭질
(C93) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex 6 - Dekichatta Hen
Tsuki ni wa Naisho no Hoshikuzu
[Nekoya] Kyokutou no Naisho (Kyoukai Senjou no Horizon) [Digital]
Sense to Naisho no Obenkyou | A Secret Study with Sensei
[Norakuro Nero] Osananajimi Love Control Chuuhen (Soku Hame Kanojo Kareshi ni Zettai Naisho no Nakadashi Koibito Keiyaku) [Chinese]
[Junai Meringue-don (Kijima Hyougo)] Saisho no, Naisho no. + Natsu no Kedamono (Haikyuu!!)
[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]
[TLB] Otousan to Naisho ~Aru Daikazoku no Chichi to Musume Yuku Toshi Kuru Toshi Himehajime~
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
Choco no Ajimi wo Suru Shimai | Sisters Tasting Chocolate