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)
(C87) [Saigado (Saigado)] AYANAMI28 (Neon Genesis Evangelion)
(C61) [Nakayohi Mogudan (Mogudan)] Ayanami 3 Sensei Hen | Ayanami 3 Teacher Edition (Neon Genesis Evangelion) [English] [Belldandy100] [Decensored]
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho 2 (Cutey Honey)
[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]
Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite wo Shiteiru Hanashi
[Studio Wallaby (Niiruma Kenji)] Ayanami to Shinya no Konbini de Seikou (Neon Genesis Evangelion)
Naisho no IV Satsuei-kai
(C69) [Nakayohi Mogudan (Mogudan)] Ayanami Rei 00 (Neon Genesis Evangelion) [English]
(C76) [Koakuma Sageha (Sage Joh)] ERO Shuurai Ayanami Rei no Baai (Neon Genesis Evangelion) [English] [CGrascal]
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
Welcome to Ayanami's House
(C68) [Nakayohi Mogudan (Mogudan)] Ayanami (Neon Genesis Evangelion) [English]
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu)
(C60) [Nakayohi Mogudan (Mogudan)] Ayanami 2 Hokenshitsu Hen (Neon Genesis Evangelion) [English] [Belldandy100] [Decensored]
(C92) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 3
(C94) [Nakayohi Mogudan (Mogudan)] Ayanami Dai 9-kai Ayanami Nikki (Neon Genesis Evangelion)