I got confused guys. Wasn't Ryosuke uncle Sho' ex boyfriend?? Uncle Sho is dating ...

no, Sho still lovey dovey with Ryosuke...

Ryosuke is the lawyer, and I think that he took care of Joon when he was kicked out the house (for his own protection). I think Ryosuke also showed up at the University after Joon's ex tried to kidnap him for money.