[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. [Digital]
(SUPERKansai22) [Pucchu (Echigawa Ryuuka)] NaruSaku Gaiden 2 (Naruto)
(C58) [Studio Wallaby (Fuu)] Reiko no Naisho! (Comic Party)
(SUPER22) [Kiiro Bird (Pappa)] Oyajidomo ni wa Naisho dazo (Magi: The Labyrinth of Magic)
[Coffee Maker (Asamine Tel)] Naisho desu yo (Fate/Grand Order) [Chinese] [胸垫汉化组] [Digital]
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya | Secret Side of Ririn-san and Her Precious Room (COMIC HOTMILK 2018-07) [English] [Stupid Beast] [Digital]
(C82) [Rocket Chousashitsu (Koza)] Yuukarin ChuChu 2 - Yuuka to Yuuka de Love Love 3P Hen (Touhou Project) [English] [desudesu]
(Reitaisai 13) [Evening Breeze~ (He)] Yuuka-chan ga Yatte Kichatta! Preview Ban (Touhou Project)
[Torajima-shi Kouhouka (Torajimaneko)] Builder to Fighter no Naisho Banashi (Gundam Build Fighters) [Digital]
(Waga Te ni Hikigane o 13) [Kuusou Kyuuka (Mikoto Kei)] Trion Hokyuu System Jikken Kiroku (World Trigger)
Yuukarin Nemukan | 유카링 수면간
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [English] [AlphaYang]
[Fuusen Club] Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~ [Digital]
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae [Chinese] [想吸大尾巴个人汉化]
[Leafy] Mama ni Naisho no Hatsujouki | 對媽媽保密的發情期 [Chinese] [渣橙子個人單行本漢化]
(C82) [Yuki Kagerou (KANZUME)] Kazami Yuuka Akushu Ken (Touhou Project)
(Futaba Gakuensai 9) [Sekai Saiko (Mesopotamian Civ)] Naisho no Tsuinteruzu
(Naisho no Jikan) [Apricot Sirup (Hi~mosu, Marui)] Doki Doki Kodomo Time (Kodomo no Jikan)
[Black_Sugar(Kari)] Touhou Futabusa ~ Yuuka Kazami ~ 3 (Touhou Project) [Digital]
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae [English] [Fated Circle]
Yuukarin ga Seme Sasete Kureru Hon
(COMIC1☆3) [Human High-Light Film (Shiosaba)] Naisho no Honey (Cutey Honey)
[LoveLess (Sawatari Yuuka)] Chiibits 2 (Chobits)
Naisho desu yo? Kald-san | It's a Secret Kald-san, You Hear?
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae
[Tamagoro] Boku to Oneesan no Naisho (COMIC Penguin Club Sanzokuban 2014-07) [English] [vaasi]
[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Boku ga Shihai Suru Senpai [Digital]
[Ijou Nouryoku Kenkyuukaihatsu Kikou (Various)] Inousha Shoujo Kesson Goudou [Digital]
[Tsurugi Motoaki (Sakemasu)] Naisho no Jikan
(SC53) [Penetrate (Reiha)] Yuuka H Taiyou no Hata Nite (Touhou Project) [English] [desudesu]
Rem to Naisho na Koto Shimasen ka?
[Black_Sugar(Kari) (Kuroi Megane)] Touhou Futabusa ~Kazami Yuuka~ 3 (Touhou Project) [Digital]
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- (Kuttsukiboshi)
(C78) [Human High-light Film (Shiosaba!)] Naisho no Asuka (Neon Genesis Evangelion)
(C75) [Barbaroi no Sato (Ryuuka Ryou)] Shinkon Shoya (Dragon Quest V)
[Mama ni wa Naisho (Plasma Beach)] Luscious Beef Cake PLATINUM (Tekken)
[Takase Yuu] Naisho no Jiyuuchou
(C79) [BlueMage (Aoi Manabu)] Present wa Yuukarin (Touhou Project) [Chinese] [黑条汉化]
(C92) [Ryuukakusan Nodoame (Various)] Sokuochi 2-koma Goudou Sono 2 "Zettai ni Sokuochi 2-koma nante Itashimasen" (THE IDOLM@STER CINDERELLA GIRLS)
[774] Naisho no Hentai Sex
[Haruiro Fudepen (Satsuki Suzuran)] Nanto Naisho no (Senki Zesshou Symphogear) [Digital]
[Junai Meringue-don (Kijima Hyougo)] Saisho no, Naisho no. + Natsu no Kedamono (Haikyuu!!)
(COMIC1☆13) [Ryuukakusan Nodoame (Gokubuto Mayuge)] Tachibana Arisu no Image Video Taikenki Imouto Hen (THE IDOLM@STER CINDERELLA GIRLS)
(C84) [Saikasou Seiteki Shoudou Kenkyuukai (Makuwauni, Nega Samurai, Hissui)] Mikotonori o Ukete wa Kanarazu Kunage! (Touhou Project)
(C94) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu 2 (Love Live! Sunshine!!)
(C80) [Fatboy (Geneil)] Kazami Yuuka to Shizuka ni Kurashitai (Touhou Project)
[Musashimaru] Touzen, Imouto ni wa Naisho de
(Osaka Daienkai! 3) [Pucchu (Echigawa Ryuuka)] Koijikara Kazaguruma (One Piece)
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu) [English]
Naisho desu yo? Kald-san
(COMIC1☆7) [CARAMEL CRUNCH! (Rikatan)] Naisho no Houkago Idol (Love Live!)
[Inomoto Rikako] Naisho no Onnanoko
[TTSY] Otonari-san no Naisho na Enkou Seikatsu
(Reitaisai 10) [Deastim (Unadon)] Yuukarin to LOVE Chu☆Chu! (Touhou Project) [English] {doujin-moe.us}
Oya ni Naisho no Umi no Iedex
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 1 [Digital]
(C84) [ROMEO DASH (Kitto Shibaru)] Naisho desuyo, Reimu-san! (Touhou Project)
[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Meshimase Houkago Otokonoko! [Digital]
[Nanakorobi Yaoki (kinntarou)] Yuukarin ni Kuwaretai (Touhou Project) [Digital]
[SPARK UTAMARO] Immoral Ichigou
Neteru Yuuka-san ni Itazura Suru Hon
Kazami Yuuka ni Shiboraretai!
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara)
(C91) [Ryuukakusan Nodoame (Gokubuto Mayuge)] Shiragiku no Shoujo ni Suzuran o (THE IDOLM@STER CINDERELLA GIRLS)
[TLB] Otousan to Naisho ~Aru Daikazoku no Chichi to Musume Yuku Toshi Kuru Toshi Himehajime~
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-5
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
[Tukimi Daifuku] Mama ni wa Naisho
(C90) [Death Para (Tamaki Kurou)] Kitakami-san to Ooicchi Naisho no Naisho (Kantai Collection -KanColle-)
(C85) [furuike (Sumiya)] Off no Kongou to Naisho no Ohanashi (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(GBW6) [Pucchu (Echigawa Ryuuka)] Ya~reyare daze (Jojo's Bizarre Adventure)
(Panzer Vor! 11) [Nazunaya Honpo (7zu7)] Erika no Naisho. (Girls und Panzer)
Mori no Shokushu ni Goyoujin ~Itoshi no Yuuka-sama~
[Watanabe Wataru] Naisho ni Shite ne | Make it secret (English)
Chika-chan ni mo Naisho no Himitsu
(C92) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex 5 - Futsukame Hen
Oya ni Naisho no Iedex - Fuyuyasumi no Toode Hen
Kazami Yuuka Nanpa Shite Sokujitsu Bunny Girl
Lecia no Naisho Naisho no Chitsujo
Taimanin na Kazami Yuuka-san
[Ichiko] Naisho no Naka - The Secret Forest (COMIC Kairakuten Beast 2016-12) [Chinese] [绅士仓库汉化]
[ChildBox (Various)] Naisho no Asobi (Ojamajo Doremi)
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer) [English] [/u/ scanlations]
[Yuukari no Ki] Ero Bio 2 ~Seishoku Honnou~ (Resident Evil)
(C86) [Team Twin Devils (Nelo Angelo)] Sarani Seiyoku o moteamashita Yuukarin no Asobi W (Touhou Project)
Yuukarin ChuChu 2 - Yuuka to Yuuka de Love Love 3P Hen
(C79) [Human High-light Film (Shiosaba)] Naisho no Ayanami (Neon Genesis Evangelion) [English] [CGrascal]
(Reitaisai 10) [Minarai Honpo (Minamoto Jin)] Yuukarin to Ashi Bakari? no Doujin (Touhou Project)
Yuukarin ga Seme Sasete Kureru Hon 3
(C81) [Snack Yoshie (Sawa)] Oneechan na Yuuka-san wa Suki desuka? (Touhou Project)
(C93) [milkberry (Kisaragi Miyu)] Houkago no Naisho 2
(SUPER23) [Strawberry (Ichigo)] Tousan ni wa Naisho ni Shitete (Shingeki no Kyojin)
(Reitaisai 14) [Rocket Chousashitsu (Koza)] Kazami Yuuka to Naisho Play (Touhou Project)
[Barbaroi no Sato (Ryuuka Ryou)] Taiyou to Tsuki ni Somuite V (Vampire Princess Miyu)
(CR31) [Studio Wallaby (Deep Purple '72)] Su no Naisho!! -The secret of Su- (Vampiyan Kids)
Yuuka Uke
(SUPER24) [Rolling box (Kanaru Tabito, Shiina Akira)] Kyosuke ni wa Naisho (THE IDOLM@STER SideM)
(C85) [CHAGASHI SAIBAN (Yamabuki Mook)] Naisho no Roommate (Infinite Stratos)
(C70) [Dr.VERMILION (Riku, Kurasawa Makoto, Petenshi)] Youmu no Naisho! (Touhou Project)