ATRI: My Dear Moments: Season 1, Episode 3 - ProjectFreeTV

1 - 3: Hitman Small Fry School

Natsuki accompanies Atri who is on her way to school. However, when they arrive, they find that most of the school is underwater. Although they managed to get into the school building, inside it was full of empty classrooms and an unexpected teacher. There, Natsuki is faced with the saddening reality of the lives of the people who remained in their town.