(C86) [Go-Go-Merry-Go-Round (Kasai Ema)] Naisho no Natsuyasumi. (Neon Genesis Evangelion)
Shotacon no Oneechan wa Suki Desu Ka?
(Reitaisai 15) [Green tea Lab (midarin)] Aya-chan no Naisho no Micchaku Shuzai (Touhou Project)
[R-Deco (Yusa)] Youjo Senpai niwa Naisho! (Aikatsu!) [Digital]
Kouu-sama ni wa Naisho
(C88) [Banana Koubou (Ao Banana)] Kaga-san wa Motto Inran Oneechan (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(C89) [CausCiant (Yamaiso)] Daisuki Alice-oneechan (Touhou Project)
Kare ni wa Naisho
(C89) [Tatsumaki Koutei (Takei Tsukasa)] Lecia no Naisho Naisho no Chitsujo (Granblue Fantasy)
Honey no Naisho 3
(SC2015 Summer) [HBO (Henkuma)] Oneechan to Issho (Love Live!)
Jiiji ni wa Naisho ni Shite ne
Hitozuma Senshi Naisho no Part-Time
Naisho! Secret
Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 1
[Musashimaru] Touzen Imouto ni wa Naisho de | Keep It A Secret From My Sister Of Course [English]
(C86) [Akuten Soushin (Kokutou Nikke)] Momiji Oneechan Wa Toshiue No Kanojyo!! (Touhou Project) [Chinese] [CE家族社]
Chika-chan ni mo Naisho no Himitsu 2
Kareshi ni Naisho de AV... Dechaimashita.
[Usi] Otto ni Naisho de Ajimi Shite Ch. 1-11
Itoko no Futanari Onee-chan to Naisho no Milk
(SUPER22) [Mukyu's Paradise (Mukyuu)] Naisho no Houkago (Baka to Test to Shoukanjuu)
(C91) [ARCH (Plum)] Sayonara Jintsuu Oneechan (Kantai Collection -KanColle-)
[Oozora Kaiko] Papa ni wa Naisho no Boshi no Fureai
Rem-rin to Naisho no Oshigoto
A New Older Sister | Atarashii Oneechan
(C78) [Human High-light Film (Shiosaba!)] Naisho no Asuka (Neon Genesis Evangelion)
[usi] Otto ni Naisho de Ajimi Shite 2 [Digital]
(C81) [Mama ni wa Naisho (Purukogi Beach)] Fukkin! (King of Fighters)
Naisho no Imouto Ecchi
Naisho no TsuboEri Himitsu no Itsuki
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya (COMIC HOTMILK 2018-07) [Chinese] [無邪気漢化組] [Digital]
[Shirano Jin] Boku no Suteki na Oneechan
Eve no Naisho Banashi 1
[Kawamura Tsukasa] Naisho ni Shitai Juu no Monogatari [Digital]
Naisho Nano! -Haruhara-ke Sanshimai Monogatari- | It's a Secret! 2
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS)
Osananajimi ga Naisho de Yatteiru SNS o Mite Kofun Shite Shimau Ore!!
[Guild Plus (tatsuya)] Aya-oneechan ga Neteru ma ni Ecchi shichau Hon (Touhou Project)
Abby to Naisho no Hamedori
H na Kanojo to Naisho no Shutter Chance
(Shota Scratch 25) [Yabure Kabure (Agemon)] Ogibo-san niwa Naisho desu. (Fullmetal Alchemist)
(C88) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex
(C91) [Kitsune (Tachikawa Negoro)] Jiiji ni wa Naisho ni Shite ne (Final Fantasy XV)
[Daizu (Satou Kana)] Oneechan ga Boku wo Onnanoko ni Shite kure masu [Digital]
(CSP5) [popular plus (Plus)] Boku to Hideyoshi to Naisho no Yorimichi (Baka to Test to Shoukanjuu)
Oneechan Tamashi
[Kuku ya (ckj)] Naisho desu yo? Kald-san (Firis no Atelier)
Naisho no Kagai Jugyou {Hennojin}
[N2jirai (Nimu)] Tsukihi-chan ni wa Naisho de (Nisemonogatari) [Digital]
(C68) [bolze. (rit.)] Nobue Oneechan ni Chinko ga Haeta P.T. (Ichigo Mashimaro)
(CR31) [Studio Wallaby (Various)] Rizell no Naisho (Rizelmine)
(Hanjuku Hero Life 5) [Bakusan (Mariko)] Ikenai Koto wa Naisho de Suru Mono (My Hero Academia)
Oya ni Naisho no Iedex - Toshikoshi-hen
Tottemo Yasashii Oneechan no Ura no Kao
Naisho na Shinomiya-san | The Secretive Shinomiya-san
(CR31) [Studio Wallaby (Deep Purple '72)] Su no Naisho!! -The secret of Su- (Vampiyan Kids)
(C86) [T.K.H.K (Hayami Aya)] Kare to Kanojo no Naisho na Natsu no Hi (Detective Conan)
[Yamamichi] Naisho ni Shimasho | Let's Do It In Secret (COMIC Tenma 2015-06) [English] [desudesu]
(C72) [SimaSima System (Nagisawa You)] Naisho no Hokentaiiku (Cardcaptor Sakura)
(Reitaisai 9) [Kitsune to Budou (Kurona)] Oneechan to Love Love Chucchu!! (Touhou Project)
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [Chinese]
Naisho no Wakana-san
[Usagi no Tamago] Oneechan no Nikka | Oneechan's Daily Routine (Nakadashi, Shite ne Geki-yaba! Anthology Vol.3) [English] [desudesu]