Hayate Ayasaki's first love, though named Athena Tennousu, has lost her memories and now lives as a child named Alice. Setting aside the reason why all this happened, episode 3 follows the lonely young Athena Tennousu, now nicknamed "A-tan," and Hayate as they get wrapped up in a bit of a criminal incident...
Though it was his fault 
in the first place...
Pero en realidad todo es su culpa.
Aunque en realidad todo ha sido su culpa.
Achei que fosse culpa dele, pra começar.