Choo is a goblin NPC who Devin took as ward; to much frustration for Torrin. Choo is very eager to please The 5, especially Devin, and prove that he is a worthy "person" to the group. In the eyes of most humanoids, Choo has very disgusting behavior and habits. However, in the eyes of a goblin, Choo is probably a very respectable and well mannered person.
While on the way to Avisac, The 5 hears about a kidnapped child. The 5 decide to pursue the kidnappers, who turn out to be a group of goblins. The 5 killed all the goblins except Choo, who Devin took as ward. Since then Choo has done his best to please his "Master Devin".