Watch 4th Period Mystery | Prime Video AM 11:40: A murder in an empty classroom. Top student Jeong-hoon finds his rival dead and must solve the case or be accused as the killer!

#KangSora studied film and theater at Dongguk University, where she developed an interest in acting. She made her screen debut in the thriller film #4thPeriodMystery (2009).

4th Period Mystery www.amazon.com/gp/video/det...

Before entering the entertainment industry, she appeared in a small role in the 2009 film #4thPeriodMystery while still a university student.