Heart to Heart is a 2015 South Korean television series starring Choi Kang-hee and Chun Jung-myung. It is directed by Lee Yoon-jung, and written by Lee Jung-ah, the writer-director duo of the famous The 1st Shop of Coffee Prince. It aired on tvN from January 9 to March 7, 2015 on Fridays at 20:30 for 16 episodes.

Choi Daniel is a South Korean actor, DJ and model. He is best known for his television roles in The Ghost Detective, Jugglers, High Kick Through the Roof, Baby Faced Beauty, School 2013, and rom-com film Cyrano Agency. He is also an anchorman on KBS World Radio since 2011 and a DJ on KBS 2FM since 2013.