seungho & Nana, I would say brother & sister.. but Mir make me wonder....plus they mention it once again in HB..well Nana like seungho since idol army CREDIT : ANNA & AMSUBS & OTHERS OWNER NO COPYRIGHT INTENDED
Seungho is closed with Nana.. he mentioned her name for recent interview and also he thanked her in a Mona Lisa album.. Nana thanked Seungho in AS Virgin album