Description from the official website
Old Uncle Mimic is one of the Relic Hunters, a consortium of explorers that attempt to advance the future by excavating secrets of the past.
Mimic is the closest thing Shantae has to a family. He lives in his workshop in Scuttle Town, where he houses hundreds of ancient objects. Since townsfolk tend to be skeptical and stand-offish to Relic Hunters (and genies), he and Shantae make a great pair. Shantae makes Mimic her project, and refuses to let him grow old, sloppy, or comfortable. Although she can get on his nerves at times, Mimic genuinely loves Shantae and strives to keep her safe. Although Shantae has no idea, Mimic is a retired hero of days long gone and still contains dormant skills that could awaken if provoked.