A shubo-sha is defined as a figure in a position of authority who is also wily enough to be considered a mastermind. In the realm of onmyōdō, those onmyōji who have bound multiple shikigami to their service take on the name as an honorific.
Dual Shikigami: This functions just like an onmyōji’s shikigami, save that the shubo-sha may have up to two shikigami rather than just one. Each shikigami is a unique entity and may know different feats, be folded into the shape of a different origami animal (thus granting the shubo-sha two familiar bonuses), and so on. Each shikigami may be lost, dismissed, or destroyed individually, and, thus, replaced individually.
This ability modifies shikigami.
Study Petitions (Su): As it turns out, shackling multiple shikigami to one’s will makes the rest of the spirit world consider a shubo-sha a bit too greedy to receive their direct help. At 2nd level and every two shubo-sha levels thereafter, the shubo-sha selects a petition for which he meets all the prerequisites. He knows the selected petition, and thus his shikigami may cast that petition, but the shubo-sha himself cannot cast any of his known petitions.
This ability replaces petition spirits.