Monochrome Factor Episode 4 English Subbed Episode Title:A Blade's Shadow.Episode Description:Akira tells Kengo about the Kokuchi and Shirogane when Aya appears and forces them to watch her kendo lesson. During the lesson they meet Aya's teacher, Hiroki Tsukikage who values honor above anything else. Hiroki gives a lecture and asks Aya to train with him. Even though she's strong, Aya looses to her more experienced senpai (Hiroki). Before going home, he tells her that they'll have an Iai training (using of a real sword instead of wooden one) the next day. Later, Hiroki finds himself surrounded by the corruption of Japan's streets (like the 3 female students, hanging out and laughing/belittle him when he told them to go home or the prostitutes calling out to him), leaving him frustrated when the blue haired guy appears...