FL with Unrequited Love

I'm actually looking for a drama/movie I saw on a tiktok a long time ago (I lost the clip), so I decided to ask for dramas/movies with a similar plot in hopes I will find it. What I'm looking for:

• FL has a crush on a guy who doesn't like her back.
• FL is either in college or has already graduated.
• FL realizes the guy she likes is kind to everyone, not only her.
• He could be the ML or not.
• They can end up together or not.

I think the clip was from a Japanese title?