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Nana and Hong Soo Hyun share the same room on 'Roommate', so it's no wonder they've been getting especially close after practicing Orange Caramel's "Catallena" together and bonding through their touching talk about their hardship as an idol and actress, respectively. The two were spotted strolling through Myeongdong on May 18 arm in arm, drawing attention.

Stay tuned for their shopping experience on an upcoming episode of 'Roommate'!