Ranga Tempest is a loyal direwolf and one of the main supporting characters in 'Tensei shitara Slime Datta Ken' (That Time I Got Reincarnated as a Slime). Originally the son of the Direwolf leader, Ranga pledges allegiance to Rimuru Tempest after his father's defeat. He becomes Rimuru's trusted companion and protector, often serving as his mount and bodyguard. Ranga possesses unique abilities like Shadow Movement and evolves alongside Rimuru, playing a key role in battles and the development of the Jura Tempest Federation.