Kubal and Shanoa are both on call Healer Supports of Parcel, Kubal being a representative of Ginta, Shanoa for Earth. While not super serious, they do have a friendly rivalry going. They'll sometimes be seen practicing in the dead of night sparring, knowing they can both heal whatever damage they inflict on each other.

And the fights tend to go on long since Shanoa specializes in dodging and Kubal is a nimble striker.