Since you've got a junsu avi i'll assume you're a fellow Xiah lover and help you out on that one...just cos im nice...and cos i love Su-baby.
aren't you lucky that i went through all those 2000+ pages of the old thread??? and i was actually crazy enough to save entire webpages whenever and wherever i found xiah info! there were numerous times that the topic of Xiah's appa's pizzeria was brought up and i saved about 6 or so webpages on it...so now im just gonna put together all the bits and pieces i've found of it for you and the others.
Credits goes to each of the original posters of the information.
Cmacaronee: this is what i found. hope that helps. it's in Ilsan-KyungGi Do
JI JUNGHWAN's IMSIL CHEESE PIZZA;
exact address; 경기 고양시 일산구 일산동 532-4
Yanshimkim: [who actually went there herself and posted pics and memorabilia Xiah's appa gave to her as a gift!]
directions to get there: find a way to get on subway line 3 (the orange line). Then get off at Jeongbalsan station. You'll have to walk a bit... But it's near the Lafesta mall.
^ the business card with address on it.
^the signed photograph she got as a gift from Xiah's appa...the autograph was on the back of the photo but she photoshopped it onto the front of the photo so we can see the photo AND the signature when the picture is scanned.
^this is the bulgogi pizza she ate and what she'd reccommend you eat if you went there.
^this is what it looks like from the outside...it's on the second level.
^this is the massive signed tarp they have of junsu in the pizzeria...apparently the whole pizzeria is decked out with Xiah pics...it's like walking into Xiah World...omg...Xiah + yummy food = death of me.
^here's Xiah posing in front of the tarp.
i hope that's enough info for all those intending to stalk Xiah's family. i mean, i've given you the address, and the directions on how to get there, and photos of what it looks like on the outside AND inside...the only thing i haven't provided is pics of Xiah's parents, and well...if you don't know what they look like then you haven't been doing your homework as a Xiah stalker and don't deserve to be one. lol.
the girls who have been there say the pizzeria is a very fan-friendly environment...as i said...Xiah pics are plastered all over the walls of the pizzeria, and they play DBSK stuff on the TV as well...one fan said they were playing DBSK Concert Secrets 2 or something on TV while she was there. I think Xiah's appa also regularly hands out souvenirs to fans...basically, they're very appreciative of fans and usually attend to fan requests so if you want them to propose to Xiah for you, just give them a ring and im sure they'll do it.

Everyone who's been there says Xiah's folks are the cutest people ever...i guess that explains how cute their lil Junsu turned out to be.
thanks for posting so much info of junsu's dad pizzeria! will definately take note when if i go to korea.. hopefully can see one of the members there... i really like the fact u guys said the pizzeria is a fan friendly place! i really wana go now..
history of japan 2 is out? T___T oh my god..