that sided with the humans to fight against the Kowloon children during the Kowloon Shock. Jiro was transformed into a vampire in 19th Century London. He used to be a lieutenant in the Imperial Japanese Navy until he was severely injured in a fight protecting Alice. Besides being an Old Blood, he also comes from a very special bloodline: the blood of the Sage. He wields a long katana which has a blade made of silver. During the war, after defeating most of the Kowloon children, he became known as the Silver Blade and the Kin-killer. He is able to use some of the Kowloon powers as well as those of his own unique bloodline to be able to challenge even the Kowloon King and the three powers of the Special Zone. He is weak against sunlight and water. He is shown being burned to the bones from staying into the ocean too long and releasing smoke under the sunlight, even though he was carrying an umbrella. He has a little brother, Kotaro, who is the only other vampire who shares his bloodline. He is considered to be the chosen Guardian. As the chosen guardian, he is devoted to returning the sage's blood, which resides within him, into her reborn body, Kotaro. He reveals to Mimiko that once Kotaro fully matures-(which is never explicitly known at the end) and he gives back the sage's blood, he will no longer be around. Since he took in Kotaro as a newborn following Alice's death, there's a chance that Kotaro could be his adopted son. Jiro's ten-year-old, "younger brother", who does not seem to exhibit powers of a vampire, such as the "Hide Hand." Although, he seems to have an extremely high pain tolerance: as he is thrown into the ground and walls without injury in almost every episode. As commented by Mimiko Katsuragi, he does not appear to be the brother of Jiro since he is not hurt by sunlight nor water, unlike Jiro. Another fact is that they look totally different from each other: Jiro is tall, has black hair and brown eyes, while his brother is short, has blond hair, and blue eyes. Kotaro stated that they are brothers because they are the last two remaining vampires of their special bloodline. They both carry goggles around their necks. He has the same speech pattern and bears a striking resemblance to