Duo befriended Solo during their time together in the Tatters. When Solo's new Ally Saroko unlocked the Shadow Stage, the blepper convinced him to guide them the whole way. Duo ended up bonding with Saroko while showing them around, so Solo convinced them both to become allies.

Duo is a sweet, quiet mawnite who dislikes conflict and would rather spend his time cooking over much else. He is enamored with the Enchanted Forest with many of his preferences in food and literature being rooted in that fascination for the Forest's culture. Sadly, though, he tends to bottle up his own needs and frustrations, and they tend to leak out at embarrassing intervals.