Where is this score screenshot from?

I believe the game is アイドリッシュセブン which translated to IDOLiSH 7 which looks to be a male orianted Idol Rhythm Game (similar to Love Live and IdolM@ster)

i belive it's this because a google reverse image search showed me this

and from that first link, while it did not have the image shown did have this post which did have the image

as we can see, very similar UI and the post it came from ait titled

Thank You For Everything {IDOLiSH7}

Looks like it's IDOLISH 7.

At least google search yields very similar results for it : Idolish 7 score game