Ice and Fire Compatible

The male protagonist is an anti-drug policeman, and the female protagonist was a policeman at first, but later became a B&B owner because of life and some things. When they were dating in college, the hero was separated due to a mission. Later, they met because of fate, and found out that the heroine actually gave birth to a child for him after leaving him, and became his boss. Then he retired from the army due to injury, and finally lived a happy life with the heroine.