Sebastiantchi is human-like in appearance, with light pink skin and ears. He has gray hair and a mustache. He wears a brown suit with a red bow tie.
In the Anime
Sebastiantchi is the butler of Kikitchi's house. Monsieur Kikipapa and Madame Kiki, Kikitchi's parents, hired Sebastiantchi so that Kikitchi wouldn't be lonely. Because Kikitchi's house is so big, Sebastiantchi uses a little car to get around.