The 4th production by Ushijima Iiniku! The very obedient girl "Chihiro Yuigawa" is injected with Ushijima Iinikuism! An evolved eroticism is born. Beautiful girl, small breasts, beautiful buttocks. She has the elements that make men obsessively horny, and is produced thoroughly! Chihiro, who has an inquisitive Kokoro about eroticism, is thoroughly educated in everything from maniacal content such as loli, erotic clothing, and fetishes to hard sex like rape.