Kenichi wants to know how strong he really is. Sakaki accepts a job from the Japanese government. Kenichi goes with him to learn about the real world of martial arts. Christopher Éclair, a Yami assassin, flies to Japan. Sakaki and Kenichi are asked to prevent Christopher assassinating arms dealer Gauche Wynne. Christopher attacks and kidnaps Kenichi, planning to exchange him for Gauche. At an empty hotel Christopher tells Kenichi about his past with Sakaki...