The Disciplinary Squad is a group of Sekirei under the command of Natsuo Ichinomi a clerk of MBI and in charge to hunt down all who oppose or try to escape from the Sekirei Plan. It is indicated that this wasn't the purpose of the squad in earlier times.
The first Disciplinary Squad:
It was formed after after an army attaked Kamikura Island and most of the Sekirei still were embryos and eggs. Members were #1 to #5 and they easily defeated the international army protecting all unborn Sekireis. They dispanded for various reasons, Matsu stealing the Jinki #8, Miya because of her husband and Kazehana because of her rejected love to the director.
Members of the first Disciplinary Squad:
The second Disciplinary Squad:
Not much is known about the second Disciplinary Squad. In a flashback it is revealed that Karasuba and Yume were fighting in order to save Musubi when she was still a baby. In this incident Karasuba killed a huge amount of soldiers stating to Yume how weak they were, saying she only killed them because Yume haven't been here.
Members of the second Disciplinary Squad:
The third Disciplinary Squad:
This is the currently active formation. They are known to be ruthless and even killing Ashikabis which is forbidden by the rules of the Sekirei Plan. They all seem to be rotten and to enjoy killing. They are under the command of MBI hunting down escapies but also terminate other Sekirei if they are in the mood to do so. Now all members are winged by an Ashikabi named Natsuo Ichinomi.
Members of the third Disciplinary Squad: