Jirou Mochizuki

Once a distinguished lieutenant in the Imperial Japanese Navy, this legendary vampire turned human protector earned the title "Silver Blade" during the Kowloon Shock. Carrying the rare blood of the Sage, he wields a silver-bladed katana to defend humanity against the Kowloon children. Though an ancient being transformed in 19th-century London, he remains vulnerable to sunlight and water. Alongside his brother Kotarou, he represents a unique bloodline, serving as the destined Guardian in a desperate struggle for survival.