During a successful M.I.9 mission to secure the deadly assassin Samantha Stiletto, KORPS mistakes Keri for the assassin. Keri takes Stiletto's place in the world's most deadly tournament, The Shadow Games, where the winner will become the new Shadow Master of SKAPULA, KORPS' assassination division. The team's only chance of rescuing her is to rely on ex-Shadow Master, Alexis von Hades, who is far from trustworthy.