Rent X (2001 - 2002)

X is a Japanese action romance TV series following the likes of Kamui Shiro, who after a six-year absence, returns to Tokyo in order to fulfill his mother’s dying wish. Meanwhile, Kamui finds himself in the line of fire between two factions – the Dragons of Heaven and that of the Dragons of Earth, and is up to his allegiance to determine the final faith of Earth’s humanity.