About Oppai Highway – Onee-san no Kenkyuu [Kito Sakeru]
Oppai Highway – Onee-san no Kenkyuu [Kito Sakeru] is a hentai manga by Kito Sakeru. It runs to 1 chapter and 27 pages, and is complete. Themes include armpit licking, Big Breasts, Blowjob and chikan.