Astarotte Ygvar

Astarotte Ygvar (アスタロッテ・ユグヴァール), more commonly known by her nickname Rotte (ロッテ) (commonly mistranslated as Lotte), is the main protagonist of the series. The title of the series, either the manga (Rotte no Omocha) or the anime (Astarotte no Omocha!), is named after her.