Twinkling Watermelon (2023)

The similarities:
- Story revolves around band and musics
- Has a time travel plot (but here it's kinda unique)
- It's a beautiful story
- their music is chef kiss < 3

If u guys love music, then u will love this movie!

Both are 'Coming of Age' dramas:
Youth
Big group of friends
high school setting
main couple + support couple