Ano Natsu de Matteru OVA Waiting in the Summer OVA
Set two years after the final episode of the original TV series, Tetsuro finds an old test film at Kaito’s. Kaito decides to watch the film and reminisces on the fun times with his friends. Later on Kanna, Mio, and Tetsuro show up with fireworks and sparklers. They group all look back on their time together and look forward to their future.
[Source: Sentai Filmworks]