Naked Fireman (2017)

Both MLs are good-hearted firefighters with a past connection to the FL.
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Both MLs are firefighters and of a lower social class than the wealthy FL with whom they have a past connection.

The male lead is a sexy and cool fire fighter who at the begining does not understand FL intentions.

Kang Chul Soo is an enthusiastic fireman who poses as a nude model to make money for his sick friend. He is then targeted as the criminal of an arson-murder case that took place 10 years ago, and together with mysterious heiress Han Jin Ah, he tries to find the real culprit.

Kang Chul Soo is an enthusiastic fireman who poses as a nude model to make money for his sick friend. He is then targeted as the criminal of an arson-murder case that took place 10 years ago, and together with mysterious heiress Han Jin Ah, he tries to find the real culprit.