Ayumi Mizushima is on what the outside would appear to be your typical 17 girl. Although all of this changes when she is enrolled in Hope's Peak Academy. Ayumi along with 15 of her fellow classmates are knocked out and forced to play out a Killing Game in a dystopian future where all that remains are the scars of hope and the remains of what once was a prosperous world.

(SYOC Open!) "Trust, No, One." That quote, that simple quote, makes 16 students question who they are, where they came from, and is all hope lost? Its a killed or be killed world, even in the middle of the sea. May they hope to once again be free? Only time will tell. "Trust, No, One."