Ha-seon and Do-hoon, a couple who love sex, enjoy sex all the time, to the point that Do-hoon's 'stuff' breaks due to too much intense action. After the accident, Do-hoon's 'stuff' has not been as good as before, and Ha-seon is getting tired of her unsatisfactory sex life.

• Do Hee
• Woo Yeol
• Ha Yeon
• Han Seok-bong