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...
Sorry, I asked you to 
do something you can't.
Perdona que te pidiera hacer algo que no puedes.
Siento pedirte hacer algo que no puedes.
Me desculpe, eu pedir para você
 fazer algo que não pode.