Responses

First of all, I think Yamada doesn't really see Alex as a woman. Of course he knows what gender she is, but his character is such that he doesn't care about someone's gender. He only loves Akane and has said that he wouldn't talk to other women if she wanted him to. But she doesn't want to suppress him because he just enjoys gaming, regardless of the gender of his opponents or teammates.
Love how Akane is trying to understand something that she's not used to so sweet! Normally, you'd be like "who tf is that girl!? Rahhhhhh" and then fight comes in lol