Mitsuki (三月, Mitsuki) is a Soul who is the former Master, and current Guardian of the Ōryū Temple situated in the Rukongai. He has been a partner to Shiju Shūdō for quite some time and, as a result, has become a notable Zanjutsu practitioner in his own right. Following the Collapse, Mitsuki is one of four members of Ikki besides Shiju, and assists the Six Directions as an added military force when necessary.