We're all traumatized by this manga , me too so I Re read the last chapter a couple of times ( I had to ) and I figured it was just a supr of a moment thing and furuya just happened to be there . He had memories of what happened in the coach room and since furuya has been scouted a few times he must have asked since unlike others who may or may not continue or have a chance at pro , furuya is most likely to . As for eijun listening to it , that bugs me to but it was a coincidence rather than Miyuki favouring furuya , or so I'm trying to convince myself ┑( ̄Д  ̄)┍
I read the novel and the child was actually a girl and it was much more funny, since she ends up having a penis and everyone 's confused except for the mother.