Minjae is a highschool teacher during the day, but at dusk, he goes out on the streets and join with youth who are alienated from school and home. Due to an incident, Minjae is put to the test again to protect his students ─ Jigeun and classmates.
The lives of six girls belong to different worlds although connected to each other through a doll called Molly, whose existence dates back to 1976, when she appeared among the rubble of the great fire of the San Carlos orphanage, in northern Spain.