A love story between a couple in their early thirties. It's the story of two people who live in the same era but in different worlds.

From Kim Won Seok, the writer of Descendants of the Sun, a drama about a special bodyguard with a background in special investigations and the Hallyu star he is supposed to protect.

The police officers at South Korea's busiest patrol division toil day and night as keepers of law and peace -- but the reality is far from orderly.