Sayo/Partners

Lilamon
Lilamon is one of Sayo's partners, and is on her team during the Normal Tamer Tournament. It later digivolves to Lotosmon by the Legendary Tamer Tournament. Lotosmon reappears as part of Sayo's "Team Moonlight" in the Digimon Fusion universe's Gold Tamer Match.

Lunamon
Lunamon is one of Sayo's partners, and is on her team during the Normal Tamer Tournament. It later digivolves to Lekismon by the Night Crow Assault quest, and finally to Dianamon by the Legendary Tamer Tournament. Dianamon reappears as part of Sayo's "Team Moonlight" in the Digimon Fusion universe's Gold Tamer Match.

When Sayo and Dianamon killed the Seven Deadly Demons in her own universe, a curse from defeating them caused Dianamon to be sealed away, as well as making every other set of Deadly Demons power more powerful in every other universe. Seeking help, Mirei Mikagura came to her aid, causing Sayo to dimension hop into the Cyber Sleuth Universe. Mirei then tasks Aiba to kill the Seven Deadly Demons from the Cyber Sleuth universe to free Dianamon. After Aiba defeats the Seven Deadly Demons to free Sayo's Dianamon, Mirei states that Aiba too will have to her their Digimon banished as punishment for defeating the Demons. Instead however, Mirei states that she 'forgives' Aiba, because she specifically wanted it to happen so she could collect the evidence of sins. She merges them all together to create a Monzaemon, which she then has attack Aiba and Sayo. The duo however, are able to defeat and kill the Monzeamon. Mirei is upset at her 'Ultimate Digimon's death, as she intended for her Monzaemon to bring new values to the world.

Sayo and Dianamon also take part in the Master Cup.

MachGaogamon
MachGaogamon is one of Sayo's partners, and is on her team during the Normal Tamer Tournament and the Night Crow Assault quest. It later digivolves to MirageGaogamon by the Legendary Tamer Tournament. As MirageGaogamon Burst Mode, it reappears as part of Chief Julia's team in the Digimon Story: Lost Evolution universe's Legend Tamer Battle, and then again as part of Sayo's "Team Moonlight" in the Digimon Fusion universe's Gold Tamer Match.

Phascomon
Phascomon is Sayo's NaviDigimon.