Guy. As a Furret. Yuuuup.
By pure chance, instead of a pidgey coming to his aid as a child a fluffy sentret did and the two became partners. Nothing much changed with Guy's history as he still bonded and left home at 15 and he still pursued being a bard.
Furret!Guy, however, chose not to settle down in Matahari. Instead he lived much further north where the weather was cooler. He ended up very fond of cold weather. And snow.
He also never picked up singing since neither the human or furret had a talent for it. Instead he kept to his harp.
He's a bit more active than his bird self as well as more a.d.d.