Amazon.com description: Product Description: Gotham City is plagued with crime and corruption in places high and low, but one man has taken a stand against evil of all forms: the dark avenger known as Batman.When a new serial killer begins a reign of terror in Gotham City - wearing an ancient Japanese mask representing an Oni demon, but which looks uncannily like Batman's cowl - Bruce Wayne must revisit his training as a young man in Japan to find the connections between the Dark Knight and this new killer. Are the murders random? Or does someone close to the Batman know more than they're letting on?Legendary manga creator Yoshinori Natsume ("Togari") presents a tale of the Dark Knight as you've never seen him before!