20/40 Stud HI Commerce 5th street, I don't know how to play this game

[HOWMANY]

The 2[img]/images/graemlins/club.gif[/img] brings in, a ton of horrific low black cards from 2-9 fold to me like 2 or 3 from the BI with K[img]/images/graemlins/heart.gif[/img](K[img]/images/graemlins/diamond.gif[/img]J[img]/images/graemlins/diamond.gif[/img]) where I complete. Old asian guy wearing weird cowboy clothes that look like he is from Montana but wishes he was from Texas calls with A[img]/images/graemlins/heart.gif[/img] next guy folds, BI folds. No read on villain other than he is old and this is only 20/40 so he is less likely to be a very aggressive player, but he is asian and wearing cowboy clothes so I can't be sure.

4th I catch some blank, he catches a black King and check calls.

5th I catch Q[img]/images/graemlins/diamond.gif[/img], he catches an offsuit 5 and check/raises. I fold now?