Hye-Ryeon, Ok-Bun, and Jeong-Suk, women of the red-light district, are sent to the East Women Technical Institution. On-Bun in second month of pregnancy works hard and Hye-Ryon thinking about her past goes to see Chi-Nam to tell him Ok-Bun's truth. On the day when there is good news that Seon-Ja graduates first on the list from the University of the Air, Ok-Bun and Chi-Nam have a wedding ceremony with the great pleasure of all the students of the institution