Movie "Demon Slayer: Kimetsu no Yaiba - Mugen Castle Arc - Chapter 1: Akaza's Return" Theatergoers' Bonus, 8th Edition The highly popular "Chapter 1: Akaza's Return" from the movie "Demon Slayer: Kimetsu no Yaiba - Mugen Castle Arc" features the 6th visual design, "6th Key Visual Illustration Board (Koyuki ver.)" showcasing the past of Hakuji and Koyuki. When shipped, it will be reinforced with thick paper and protected from water damage. #DemonSlayer #KeyVisual #IllustrationBoard #Koyuki