Goteitaishi

Goteitaishi,known as Soul Reaper in Bleach DS,is a 11th squad member,his seat is unknown in the division,it is actually confirmed in Bleach DS that Soul Reaper is a bunch of people and a common enemy in Dark Souls,he is an unlockable character in the game(the hardest to unlock)though it is a joke and he is one of the weakest character because of his low defense and lack of skill.