Type-3 Koubu Kai

Background
After Sakura's Type-3 Koubu was heavily damaged by Yasha, Reiji Shiba managed to repair it and upgrading with new parts. It currently stands as a reserve unit in favor of the Mugen being frequently deployed.

In Episode 10, Sakura pilots her old Koubu unit again after her Mugen unit was destroyed by Kaminsky. She later switches to the Prototype Obu once again, under Sumire's orders in awe of Amamiya's strong determination resembling Shinguji's.