Children in Heaven (2012)

Other name: 천국의 아이들 Chungukui Ahyideul Children of Heaven Kids From Heaven

Synopsis:

Yoo-Jin becomes a temporary teacher for 3 months at a school for troubled students. Her students include Jung-Hoon who was kicked out from the soccer team due to a violent incident and Sung-Ah who lives with her mother from Yanbian, China. Yoo-Jin gets these troubled students to take part in a musical for a talent show hosted by the district office.