A high school girl witnesses the world around her ending. A mysterious figure gives her a chance to redo the night before this tragedy. With only four hours until school starts again, there is no time to waste. Wearing nothing but her pajamas, Mila goes on a trip of a lifetime.

Meet four young students at Yamamoto Academy, a prestigious school that has educated generations of service members for the country's most established families. However, their golden future is being threatened by a new technological innovation. Will our heroines be able to solve the mystery and s...