Hyowon, a yangban (nobleman) who enjoys colors so much that he plays every night.
He is secretly introduced to the famous Eumgu (Music) Workshop (*adult store) that is secretly famous among aristocrats by his close friend Nam Soo-in.
The owner of the workshop, Shin-woo, who came to visit him, is very blunt, unlike the splendid/colorful musical phrases and notes he makes.
Hyowon wants to experience it with Shinwoo, so he proposes to test the efficacy of emgu (musical phrases/toys) on his own body. In a desire to experience it.
Hyowon tries to sleep with other man than Shin-woo, but he can’t feel the same pleasure he felt at Shinwoo’s hands.
In the end, with Hyowon’s persistent suggestion, Shin-Woo tests the tone and pitch with Hyowon.
Hyowon expects that he will be able to sleep with Shinwoo once the music test continues.