"Dare yorimo aishi~teru."
=> "I love you more than anyone."
That's what I heard Aki say after Juana thanked him for the sushi knife.
She gave him a quizzical look in response, but the subtitles just translated his line as "you're welcome".
Did anyone else hear something different than I did?
I was waiting to see if they would call back to it later in the movie, but no...
I guess they just left it in there as a kind of Easter Egg that most of the audience wouldn't have access to? Curious.
(Edit: I had to alter the spelling of the japanese quote slightly, because imdb was treating it as an english swear word. Silly...)