Japanese baseball team Seibu Lion is no stranger to anime collaborations and this coming August, they will be inviting the 3 seiyuus cast members of the anime series Anohana to throw the opening pitch for their match against Tohoku Rakuten Golden Eagles. This is to promote the upcoming Anohana movie that is scheduled to air in Japanese theatres on 31 Aug 2013.
The three female seiyuus from the series Kayano Ai (Menma), Tomatsu Haruka (Anaru), Hayami Saori (Tsuruko) will be making their appearances at the stadium. In addition, fans who attend the event that day will get a very special ticket that features the Super Peace Busters on the stub.
Source: Seibu Lions official website