Office boundaries are officially shattering! In the latest See You at Work Tomorrow!, the icy Kang Si Woo drops his professional guard to care for a sick Cha Ji Yoon at home.

This tender, medicine-filled visit confirms their slow-burn romance is heating up fast. Catch the sparks fly in episode 4, airing June 30 at 8:50 PM KST.

Don't miss out!