The brothers expected that the next emperor should be Oama no Miko, so after Emperor Tenji's death, they gathered dozens of soldiers including members of one or two family of their clan to support Oama no Miko.
二人は次の天皇は大海人皇子に違いないと考え、天智天皇の死後、挙兵しようとして、一、二の同族と諸々の豪傑、あわせて数十人を集めた。