Haruka ni Aogi, Uruwashi no - Final by PULLTOP

Tsukasa starts working at a girl's high school after graduating from university.
However, the school is located at the edge of a peninsula, with no other homes around.
On his first day of work, he gets out of a bus and walks to the school.
He is surprised to see the school building is a huge western building.
Soon after he realizes something.
This is a branch school, and students are isolated from society for personal reasons.
He doesn't know what's in store for him, but it's too late to turn back. His life as a teacher begins...​