This is Konata from the anime Lucky Star. This one comes in pdo, lines and no lines.

Lucky Star is a comedy slice of life anime. In the anime, Konata is the chirpiest character and she is the parody of Suzumiya Haruhi.

Voice by the same person as Haruhi, Konata is born in a family without mother. Her mother passes away while she’s still young.

Living with just his father, his father teaches her to play Galge and Eroge while growing up and turning her into an otaku.

Despite being a popular anime, Lucky Star does not make more anime episodes even though they made million from sales of merchandise and dvds.