So way back in 2004, I had a tamer named Asuna who had a fan-made machine jackal back before BlackMe

So way back in 2004, I had a tamer named Asuna who had a fan-made machine jackal back before BlackMetalgarurumon was a thing.
2005 they were intended to get Cheri instead. And then they were never used or seen again until recently, where I reinvented them for Cyber Sleuth. 
Their name changed to Aoki Sakai, a gender ambiguous mechanic who originally had a BlackGabumon as their partner, until it ended up being deleted permanently after a very unfortunate face-off with a Beelzemon on a rampage- their BlackMetalgarurumon becoming easy fodder because Aoki froze.
Fast forward years later, they still haven’t had the heart to replace their partner, but end up taking in an Impmon as a second try, though there’s something familiar about the guy. At least he’s cute and endearing right now.

Keese is just an absolute Tsun and doesn’t like admitting to anything that implies it’s got a softer side.