No Heaven, but Love.

Both films are about the love story between two high school students. Both films address the topic of sexual harassment within an educational institution. In both films there is a sport.

Friends to lovers but make it gay. They both have two main female characters who are friends at first but then end up falling for each other and find strenght in that relationship to face life's hardships.

Same lead actress (Lee Yoomi).
Both follow the lives of high school students.
Both have bullying and mental health scenes (including self-harm and suicidal attempts).
Both have a WLW relationship occurring (although shown in two very different ways).

No Heaven, But Love and Young Adult Matters are pretty different in tone, but they both follow messed-up situations where young people are just trying to survive.
Young Adult Matters hits harder emotionally, it’s darker, more chaotic, and doesn’t hold back when showing trauma and survival while No Heaven, But Love is quieter and in a way softer, but even with all that, both films show how powerful friendship (and love) can be.