Detective Park Dohyun, a towering 190cm with a fiery temper, is known for solving cases with fierce speed—often without a care for his own safety. As usual, he throws himself into danger and ends up hospitalized after a case. Rushing to the hospital upon hearing the news is Lee Seungwoo—Dohyun’s lover and fellow detective, whose calm and cautious nature is the complete opposite of Dohyun’s. Fed up with watching Dohyun get hurt time and time again, Seungwoo confesses he’s had enough... and asks for a breakup. Can Dohyun win back Seungwoo’s heart before it’s too late?