Ranga

Ranga is a magical beast named by and devoted to Rimuru, leader of the Star Wolf clan and a member of the Twelve Guardian Lords. He is the only Tempest executive without a humanoid form.

Marked by a distinctive star on his forehead, Ranga evolved from a direwolf into a massive Tempest Star Wolf clad in golden lightning. Proud and ferocious toward outsiders, he is dog-like in his devotion to Rimuru — wagging his tail, protecting his master, and usually resting hidden within Rimuru's shadow until called.

He is the son of the Direwolf Boss, whom Rimuru defeated and absorbed; rather than holding a grudge, Ranga and his pack pledged themselves to Rimuru, and Ranga has served ever since as his mount and one of his most reliable guardians. He keeps up a friendly rivalry with Shion for their master's affection.