Botako is a mean and snobbish girl who appears in the episode "Ah, Love, Love, Love!" Though she appeared in the three anime series, her major role was in the 1973 anime.
She was a regular character in the 1973 anime and had more appearances then. She lived in Shizuka's house as her housekeeper. She had two additional friends: Jamako and Debuko.

(Source: Doraemon Wiki)