Konbu-san (Shadowside)

Steppa is a Shadowside Yo-kai of the Uwanosora tribe.

Specifically, this is the appearance of Steppa for the Shadowside series, 30 years after the original series.

Biology
In his Lightside form, Steppa looks like his original counterpart, but smaller and thinner.

In his Shadowside form, he is taller and has long seaweed hair.