Last Waltz: Hakudaku Mamire no Natsu Gasshuku
Genres: Hentai
Type: OVA, Episodes: 2
Aired: Apr 30, 2010 to Oct 29, 2010
Studio: Suzuki Mirano
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
It was just supposed to be a summer training.... Yuki is a caretaker of the baseball club. She and other members stay at a training camp on the isolated island now. But one day, a civil war breaks out. Male teachers leave the island to see what's going on. However, they never come back. Several days later, they know that their ship is wrecked. Nothing to drink.... Nothing to eat.... They gradually lose their self-control....

(Source: ErogeShop)