Dogi

Dogi is Adol Christin's long-time companion and best friend; a blue-haired kindly giant with a knack for crushing walls (or boulders) with his bare hands.
Introduced as a thief who breaks Adol out of prison in the first Ys, he has become Adol's traveling companion in the majority of the series.

He's originary of the town of Felghana, in the Garman region.