Narration of Love at 17 (1991)

Blurb:
Seyoung is an ordinary 17-year-old schoolgirl who plays mediocre roles in her school’s drama productions. Her real-life drama develops as she finds herself falling for her childhood playmate Hyunwoo, who he is drifting away from her and toward a TV star schoolmate named Hyemi. When Seyoung works up the nerve to profess her feelings to Hyunwoo, he thinks she is merely working on her acting! Seyoung lives out her youth as if the entire world is a stage, but as she basks in the bright lights of innocence she seeks someone in the audience to recognize the light within her. Written by Korea’s eminent writer Kyungok Kang, Narration of Love at 17 is a classic that will take you for a ride back to reliving your first love.

Source: www.anisearch.com/manga/255