Lucky☆Star: Original na Visual to Animation
English name: Lucky☆Star OVA
Genres: Comedy
Type: OVA, Episodes: 1
Aired: Sep 26, 2008
Studio: Kyoto Animation
Source: 4-koma manga
Rating: PG-13 - Teens 13 or older
Synopsis:
The OVA features six separate stories revolving around the cast, some of which border on the bizarre; one of which is an MMORPG environment being played by Konata, Kagami, Tsukasa, and Nanako Kuroi, and another in which Kagami has a "suggestive" dream about Konata.

(Source: Wikipedia)