Elga is an Alaskan Malamute. She is 2 years and 7 months old, and also Yuichiro's own personal dog. Or, at least, she used to be before being turned into a human. Despite her change, her devotion to Yuichiro didn't lessen in the slightest, which often put her at odds with Emina.
Helga is a generally friendly person, although, as Rino tend to point out, maybe a little TOO trusting towards strangers.