Natsumura Isuke is an alias of Keisuke Nakamura (中村圭佑) for adult games/anime.
Amanee!
Real Eroge Situation! The Animation
You Belong to Me – An Ultra-Sado Girlfriend & Her Ultra-Masochistic Boyfriend
Junjou Shoujo Et Cetera
Fault!!
Hajimete no Hitozuma
Fechikano!
Tamashii: Insert
Chichi-iro Toiki
Sex Code of the Samurai
The Right Side and the Wrong Side of Honor Student Ayaka
Nama Lo Re The Animation
Ane Yome Quartet
Demoness of Dreams
Boku wa Chiisana Succubus no Shimobe
Toshi Densetsu Series
Boku Dake no Hentai Kanojo - The Animation
Shoujo Ramune
Fuzzy Lips
Kimi Omou Koi
