I just remembered: Kanamewo by Rapparu

I found this short film in either late 2016 or sometime in 2017 when I was searching for some GL anime to watch. And I did not know much it would actually stick with me up until now.

It just makes me want to come up with a story like this, I feel so inspired! 

One of the main things is that the short film introduced me to Adustam, a plunderphonics artist on Soundcloud. To this day, their music still remains as one of my favourites! I can't find anything else like it. It's got the perfect mix of laid-back and intense.