[ gift... she looks nostalgic for a moment before putting up a bright smile again. she never really considered her special hearing as a gift when it gave her so many headaches before. it's only very recently that she has, especially when hearing hearts of certain people bring her happiness. ]

That's right.

They were supposed to be robots for the space center, to help astronauts. When astronauts go up into space, their companions will be those robots. And they need to be able to feel emotion to be good partners.