Baka to Test to Shoukanjuu: Matsuri - Sentaku ni Yotte Tenkai ga Kawaru "LIPS Eizou"

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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A promotional video that was shown to the public at Comiket 78, and uploaded to YouTube and posted on the official website. It was also included with the first Blu-ray/DVD volume of the Matsuri OVA.

It is done in the style of a visual novel game played on a Nintendo DS screen.

(Source: AniDB)