Naked Fireman - Season 1

Kang Chul Soo is an energetic, enthusiastic fireman who takes an unusual side job as a nude model to earn money for his sick friend. His life takes a dangerous turn when he is singled out as the suspect in an arson-murder case from 10 years earlier. With the help of mysterious heiress Han Jin Ah, he tries to uncover the real culprit behind the long-buried crime.