Based on available sources, no character named Hana-chan appears in the anime "Pokopon no Yukai na Saiyūki." Other unrelated characters share this name: a light novel figure from "Ojamajo Doremi 16," the protagonist of "Hana-chan and the Shape of the World" manga, the central character in "Uzaki-chan Wants to Hang Out!," and Pokopon's girlfriend in Sanrio lore who exchanges letters with him. While "Pokopon no Yukai na Saiyūki" is a Sanrio OVA, no sources associate a Hana-chan character with this film or its related media.