Age of Innocence (2002)

Tae-Suk (Ko Soo) is a senior high school student, but he isn't interested in studying. His best friend is Min-Soo (Yeo Hyeon-Soo). One day, Tae-Suk skips class and reads comics at a comic book store. Min-Soo skips his studies and tries to find Tae-Suk. Finally, Min-Soo finds Tae-Suk and runs to catch him, but Tae-Suk runs off. He while running away from his friend, Tae-Suk sees a girl named Ji-Yoon (Kim Min-Hee) posting flyers. Tae-Suk tears off a flyer and takes it with him. Ji-Yoon becomes angry. At that moment, Min-Soo comes up and apologizes on behalf of Tae-Suk. Tae-Suk goes back to his house. He is sensitive, because his mother has returned to Korea and will have an exhibition. His mother left him and his father years ago. The next day, Ji-Yoon (the girl putting up the flyers), appears in the same classroom with Tae-Suk and Min-Soo. Ji-Yoon is a new transfer student. Min-Soo falls in love with Ji-Yoon, but Tae-Suk and Ji-Yoon become attracted to each other. Their love triangle ends in tragedy. Years later, Tae-Suk's friend Dong-Hwa (Park Jung-Chul) introduces his new girlfriend Ji-Yoon to Tae-Suk. It's the first time they have seen each other since Tae-Suk left.