Chubby is a Teapot Spirit and an open-world NPC that appears in the Serenitea Pot (Genshin Impact) in Genshin Impact. He is the Teapot Traveling Salesman and only appears in the Teapot on certain days of the week, namely Friday, Saturday and Sunday. Interacting with him allows players to purchase unique furnishings and Radiant Spincrystals which allow players to change the background music of their realm.
He takes on the form of a large black Finch with orange and white markings around his beak. He resides in a floating green and white Teapot with it's lid being worn as a hat.
