On the January 24th premiere of MBC's romantic comedy '7th Grade Civil Servant', 2PM's Chansung made his first appearance as elite agent Gong Do Ha.

Gong Do Ha (Chansung) instantly grabbed viewers' attention with his unusual first encounter with Seo Won (Choi Kang Hee), who used him as a shield to hide from Gil Ro (Joo Won) right as he was about to have his interview.

Chansung made female viewers swoon with his charismatic role as Seo Won's "black knight." He showed his character's caring side whenever she needed help during the episode. From the looks of it, viewers are expecting an interesting love triangle to start brewing between the two male agents, Gong Do Ha and Gil Ro, and Seo Won.

Catch '7th Grade Civil Servant' every Wednesday and Thursday at 9:50 PM KST!