An unidentified Digimon that invaded from an other-dimensional Digital World. Nanimon went by the nickname of “Oyaji” in the other dimension, and was kept as a digital pet. It loves alcohol and violence, but once it invaded this Digital World (the details of which are still fuzzy), it Digivolved into an active creature. Inspired by the survival-of-the-fittest nature of the Digital World, it threw itself into battle. Its true power remains unknown. That being said, Nanimon has made it through many battles and evolved into its Ultimate form.
