The fourth installment of Ushijima Iimei Produce! A very obedient girl, Yuikawa Chihiro, injects Ushijima Iimei Proism!! Evolutionary eroticism is born. Beautiful girl, small breasts, beautiful butt. We thoroughly produce her, which has the elements that make men become paranoid and horny! Chihiro, who has a curiosity to eroticism, is taught to her from maniacal content such as lolita, erotic clothing, fetishism, to humiliating hard sex. Enjoy the silly clothed and sturdy butt-like feel of Ushijima Iiniku's cosplay, which is "more erotic than naked" produced by Ushijima Iiniku.