A group of troublemaking students from Wutong Middle School receive a mysterious letter from their future selves, warning them of impending misfortunes and challenging them to complete three impossible missions to save their ailing math teacher.
To Us, from Us
A group of students from a notorious yakuza class at Wutong Middle School receive a cryptic message from their future selves, outlining the events of their high school years and making a puzzling request.
