Ahito is Albert and Anna's son. He's a generally kind young child, though he tends to get embarrassed easily. Though he obviously cares for his parents, he doesn't hold back when it comes to commenting on his mother's lace work or other things. Akino/Grandma also considers Ahito to be a part of the Aria company due to him being Anna's son.
Ahito is, like his parents, an anime only character, and does not show up in the manga.