Jump Shot by Miso: there's a mystery about Maxine!

Jump Shot is one of my fav stories on episode. And I noticed something fishy in it!!

So in chapter 14 or 15…they were to leave for the training camp. There the coach’s name is Binh…somethin but is called Benny. And as far as I remember, in the 1st season episode 1, the intro said that Max was adopted as her mother, or rather her stepmother Holly had PCOS and could not have a baby. So her biological parents are not found, right?

I noticed that the mark on Maxine’s face, aka a dot near her eyes, was the same mark coach Benny had.

Is he her father?! Seriously what?!

Is there someone else with the same thought?