After School's Nana revealed her secret on keeping her goddess-like figure. "I don't purposely reduce my eating habits just to keep my form," she said. "Instead, I keep my spine straight and always maintain good posture." Nana also revealed that she pays attention to how she walks. "Even when I'm tired, I don't slouch and always walk like I'm on a runway." She also mentioned her future activities with After School. "We just finished up our promotions for 'Shampoo'. We'll work hard to bring you another side of our charms." After School is slated to begin their Japan promotions in July. Source: Sports Chosun via Nate