A drama CD, titled Tatoeba Konna Birthday Song (たとえばこんなバースデーソング, subtitled with "Birthday Song for you"), was released with a special edition of the 3rd light novel on November 18, 2011. The drama CD contains a character song, sung by Yukino Yukinoshita and Yui Yuigahama (Saori Hayami and Nao Tōyama), titled "Bright Generation" and composed by Yukari Hashimoto.

The CD details a larger birthday party held for Yui. Chronologically it takes place after Volume 3 of the light novel and Episode 6 of the anime.

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