Yosul (2010)

Myeong-jin and Jeong-woo, attending the same conservatory, are studying cello. Myeong-jin is in awe of Jeong-woo's genius. Ji-eun, a piano student is working on her own composition: Magic. Jeong-woo offers to play it for her but on the day of the performance, he collapses on stage, leaving Myeong-jin to complete the concert. While nursing Jeongwoo back to health, Myeong-jin asks Ji-eun if he can step in for Jeongwoo but she refuses his offer. After Jeong-woo dies, Ji-eun goes to see Myeong-jin. She plays Magic one final time and quietly enters the music room to end her own life.