Bleach (manga)
A Soul Reaper lieutenant of Squad Six and Rukia's childhood friend, initially an enemy to Ichigo before joining forces with him to rescue Rukia from being executed and since became a consistent ally of Kurosaki. His Zanpakutō "Zabimaru", whose spirit form is a snake-tailed ape known as a Nue, is a whip sword. For most of the series, Renji's uses his Bankai's imperfect form "Hihiō Zabimaru", a giant skeletal snake blade, before revealing his true and more practical Bankai "Sōō Zabimaru".