I don’t know what is the hype about Eric, but there sure is a lot.
One way to find out is to watch the spy-rom-com KDrama: Myung Wol the Spy.
Title: 스파이 명월 / Spy Myung Wol
Genre: Romance, comedy
Broadcast network: KBS2
Broadcast period: 2011-Jul-11 to 2011-Aug-??
Air time: Monday & Tuesday 21:55
An elite North Korean spy, Han Myung Wol, and her partner, Choi Ryu, infiltrates South Korea on a mission to disrupt the Hallyu Wave by kidnapping one of their top stars, Kang Woo. Despite her proficiency at her job, Myung Wol's one weakness is her uncontrollable curiosity. Hijinks ensue when she falls in love with Kang Woo instead.
Han Ye Seul as Han Myung Wol
Eric as Kang Woo
Lee Jin Wook as Choi Ryu
Jang Hee Jin as Joo In Ah
Source Drama Wiki