Morita-san wa Mukuchi

Also known as:  Moritasan wa Mukuchi, Miss Morita is Taciturn, Morita-san wa Mukuchi OVA

The first OVA adaptation of Morita-san wa Mukuchi is created by Studio Gram, based on Tae Sano's comedy / slice-of-life 4-koma manga of the same title. The original story follows the everyday life of Mayu Morita, a girl who is exceedingly gentle and thoughtful, to the point that she does not say much of anything to anyone in high school. (based on ANN synopsis)

Permalink: anime-1179

Producers, official website and other details: AniDB, ANN, Wiki