From the Bottom to the Top

One boy, seven girls, stuck on an island in the middle of the ocean.

After an unfortunate disaster left Masachika Kuze and several others stranded on an island, they are forced to survive on their own until they get rescued. Can Masachika make it back home with everyone else? Or does he even want to go home?

What about the girls? Can they keep their sanity intact while they wait for help? Or will they slowly lose themselves due to the gravity of their situation?