Lead cast: Kim Ji-yeon (aka Bona), Park Seo-ham, Jang Se-hyuk Latest Nielsen rating: 0.5 per cent In the new fantasy romance Dive into You, a mysterious camcorder allows a pair of superstar siblings to travel back in time and swap bodies in a desperate bid to save a loved one. Kim Ji-yeon (Twenty-Five Twenty-One) – also known as Bona from the K-pop girl group WJSN – appears as screen siren Yoon Ha-na, who has reached the top of her field but is experiencing an emotional numbness that affects her...