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...
We go up that hill and go 
straight, and we're there!
¡Si subimos esa colina y 
seguimos derecho, llegaremos!
¡Si subimos esa colina y 
seguimos derecho, llegaremos!
Se nós subirmos reto 
por aqui, chegamos lá.