Obu

The is the first Japanese Spiricle Armor developed by Kanzaki Heavy Industries prior to the Sakura Wars series. No one could move the test pilots who participated in the start-up experiment, but they got out of control due to the strong spiritual power of the Kanzaki family's daughter, Sumire Kanzaki.

Background
The Obu is the first Spiricle Armor project headed by Kanzaki Heavy Industries under President Tadayoshi Kanzaki's orders in conjunction with the Teigeki Plan. The project became a dead end when no other test pilot could activate the Zero Obu (桜武 零番機) in the initiation stages, but jumpstarted back into action when it was discovered the president's granddaughter, Sumire Kanzaki had more than just enough spiritual power to meet the requirements. As of result, that breakthrough displayed the possibility of females being the best pilot candidates and the armor production processed onto the Koubu development.

In Sakura Wars: Taisho Roman Gakuentan, the Obus became domestic are were transferred to the Grand Imperial Academy for its students to master the basics.