Yuu and Natsuki met in the hot sun, during that unforgettable summer vacation... Was it a dream, or...? It was a bittersweet love story?
(Source: AniDB)
Kaido is the best site to watch
Natsuyasumi. SUB online, or
you can even watch
Natsuyasumi. DUB in HD quality.
You can also find
Studio 9 MAiami
anime on Kaido website.