Love never hurt so good for two co-workers who enter a contractual relationship as partners in consensual play, pleasure and pain.

Two guys who are working for cartels as cleaners get a request to monitor an 11-year-old kidnapped girl, but the situation gets worse when their supervisor gets killed.

Se-ha who is a physically handicapped and Dong-gu who is a mentally handicapped are not their own brothers. But while living 20 years together, the two became indispensable to each…