Help looking for this jdrama

Hello,

Some time ago I watched a movie Japanese drama trailer. I can vaguely remember the story but I think there was a girl looking for a mysterious guy and this guy is either missing or dead but everyone around him knew him (like he was the kindest person in town or something). I believe it was a Japanese film, and the genre is probably in drama/slice-of-life.  

 I've forgotten most parts but if you have any idea I'd love your thoughts! Thanks!

sadly it's not that one.. it's not a high school setting but more like a streets on a small town vibe. (also MDL won't let me quote reply for some reason and says my profile is under review what :/ )

@russian white bear

i dont remember which one.. I think it was a movie though! and... ahh maybe around 2012+ ? 

(T_T)

https://kisskh.at/5471-a-story-of-yonosuke

maybe this one