Andromon

"'Life signs... fading. Please... Just go.'- Andromon"

About
Andromon is an Android Digimon, and is the caretaker of Factorial Town. He stands roughly six and a half feet tall, and is known for showing no emotion. Despite being emotionless, he has medical knowledge and willingly uses it on hurt and injured people near and in Factorial Town.

Project Horizon
He first appears when Syrus and company arrive at Factorial Town to send Grimm home. After Grimm's refusal to go, Andromon allows them to use his lab to examine Grimm and figure out the source of the dark energy.

Later he reappears after the destruction of Factorial Town, he's half dead, and uses his remaining power to keep the portal back to the real world open so Syrus and friends can go and defeat DaVoice.

Syrus
It's revealed here that he has a past with Syrus from before Syrus met with The Alchemist. It's unclear how well they know each other, but it is known that they both knew the truth behind The Destroyer, and worked together to defeat him.

Samantha
The two towns are at war with one another, with Andromon and Samantha leading the charge on both sides. It's believed he was the only thing keeping her from taking over File Island.