[ Manga XXX ] Last Waltz 02

All that had been planned was some summer training... Yuki is the club's groundskeeper and caretaker. She and the rest of the team are now stationed on the island in a training camp. On the other hand, an outbreak of civil war occurs at some point. Male instructors leave the island in order to find out what is happening there. Yet they never made a second appearance. They discover that their ship has sunk a few days after setting sail. We don't have anything to drink or eat. They progressively lose their ability to manage their emotions.