Tsurugi Tatsuno was originally partnered with a Greymon. However, in a battle against Peckmon, Piximon De-Digivolved Greymon to the Rookie level - Agumon. Agumon later gains the ability to Digivolve into GeoGreymon. Later, when Tsurugi and GeoGreymon were fighting Shou and Yatagaramon, GeoGreymon gained the ability to digivolve into RiseGreymon. Now, in the System World, after Tsuguri receives the Digivice Twin R, RiseGreymon has digivolved into VictoryGreymon.