Ash decides to cooperate with Xiao in order to thwart Luther's ambitions. After Ash is shown remnants of Luther's experiments, Xiao tells him about Luther's goals and explains how Xion is the key.
Who would have thought you'd
worry so much over little old me.
Dass du dich so sehr meinetwegen
sorgen würdest …
Quién habría pensado
que te preocuparías tanto por mí.
Je n’aurais jamais pensé
pouvoir t’occuper autant l’esprit.