Onii-chan to Naisho no Oshiri Lesson
(C89) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex - Toshikoshi-hen
Boku to Kanojo no Hikakuteki Naisho no Nichijou Chapter 2
(C88) [Gadget (Chobariki Mitsuo)] Naisho no Beit no Susume (Yama no Susume)
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho 2 (Cutey Honey)
[Ookami Uo] Gifu ([Ryuushutsu] JSJC Naisho no Jian) [English]
(CCOsaka92) [Mochimochitaiyo (Morita Mochikichi)] Ore to Anta no Naishogoto (Rune Factory 4)
[Studio Wallaby (Various)] Tron no Naisho (Mega Man Legends)
Abby to Naisho no Hamedori
[ChildBox (Various)] Naisho no Asobi (Ojamajo Doremi)
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [English] {forbiddenfetish77/cocblockula}
(C95) [Dennou Chocolate (AwA)] Otona ni Naisho no Warui Koto [Chinese] [沒有漢化]
(Naisho no Summary DR2021) [Pocome (Shinomori Mokyu)] Boku shika Shiranai (Disney: Twisted-Wonderland)
Naisho no Gohoubi
Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite wo Shiteiru Hanashi
Naisho no Asobi
Naisho no IV Satsuei-kai
Chika-chan ni mo Naisho no Himitsu
(Tenkaichi Soudatsusen!) [Shigureya (Gure)] Hoka no Dare ni mo Naisho da zo? | Keep This a Secret From Everyone Else (Dragon Ball Super) [English] {Doujins.com}
(COMIC1☆7) [Matatabi Sanjou (HaRu)] Mao ni wa Naishodayo (GJ-bu) [English] [Calgaryfag]
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu)
(C92) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 3