A Prince trapped by obligation in a prison-like castle finds freedom in an Assassin, while the Assassin discovers life in who he thinks is a pauper.
When Zechs Merquise is found murdered, detectives Heero Yuy and Wufei Chang are tasked with the unenviable chore of keeping the only witness to the crime alive long enough to testify against the leader of the Oz syndicate, Treize Khushrenada.
After Relena insults him at a party, Duo steals an ancient looking medallion from her for spite. Little does he realize that the medallion is cursed... but not all curses are necessarily bad ones.