Song Jeongwon is an active member of the BDSM community, offering guidance and advice to newcomers. One day, he comes across a distressing post from Kang Hoseob, a beginner who has fallen into the hands of an abusive dom and is seeking help. Realizing that Hoseob lacks even the most basic knowledge of BDSM, Jeongwon steps in—not just to rescue him but to personally guide him as his temporary dom. "Master, I'll be good...I promise." Jeongwon takes on the challenge, but can he truly teach Hoseob the foundations of trust, consent, and desire before it's too late?