Sonny Boy
I just finished this and I'm heartbroken.
The ending was just perfect and so melancholic. I haven't cried this much since finishing Cyberpunk Edgerunners, but I think this one is even more well executed.
The whole anime is general was really interesting to watch, i found some things to be rushed and kinda just left there but I couldn't bring myself to give less than 5 stars to this gem.
P.S. I need a relationship like Mizuho and Nagara's, it's the most wholesome friendship I've ever seen in fiction