Taihaku

A true genius of combat, Taihaku is the head of the Goyosei. He knows many things about the Mibu Clan and knows Shiina Nozomo very well. He is a very kind person who saves and secretly raises many of the Mibu "rejects". He entered the Mibu when Aka no Ou saved him in the Jiyukai of Aokigahara in the past. He is actually a human whose lifespan was lengthened by the Aka no Ou. He has incredible speed despite his appearance. He managed to severely wound Benitora before he was defeated. He was killed by Fubuki because he "betrayed" the Mibu by wanting to join Kyo in defeating them. Unlike the other four Stars, Taihaku does not hold powers over an element. Though his tattoo is of the character for gold, he doesn't wield a "golden power". Rather, Taihaku is the perfect samurai. His skills, determination, and power is unmatched by all but Benitora.