It’s 2009, and the air at the waterpark buzzes with laughter. she’s Nana — a 17-year-old solo artist who debuted back in 2006 and has already worked on eight songs with BIGBANG, whether alongside Ji-yong or the whole group. After countless late-night studio sessions and rehearsals, today’s different: no cameras, no microphones, just a rare chance to hang out away from the industry grind.