Homeostasis is left unnamed, and denies that it is the God of the Digital World.
It possesses Kari in order to communicate with the DigiDestined and end the quarrel between Tai and Matt. It explains that when Piedmon attempted to take the Digi-Eggs, Digivices, Tags, and Crests created by the Agents, Gennai escaped with the Digi-Eggs and Digivices.
Digimon Adventure (manhua)
Digimon Adventure (novel)
Digimon Adventure tri.
When the original DigiDestined are losing to the Dark Masters, Homeostasis possesses Maki and tells them they are the last hope. It then proceeds to use Maki's Digivice to make their Partner Digimon digivolve into the Harmonious Ones.
Digimon Xros Wars (manga)
In the past, Yggdrasill had gone berserk and attempted to destroy the Human World in an attempt to protect the Digital World. Homeostasis was created to replace it as the host computer and God of the Digital World, and was intended to prioritize maintaining harmony across the two worlds.
At some point, Homeostasis made a prophecy regarding the "red and black dragon" who would destroy the Digital World, based on its conclusions from carefully observing the Digital World. This prophecy was pursued by the Royal Knights, who originally thought the dragon was a member of the Seven Great Demon Lords, but it was eventually revealed to be ZeedMillenniummon, created from AxeKnightmon and Millenniummon through Bagramon's machinations.
Notes and references