I really like how Akito went from giving up on life itself to him trying to maximise the time he lives after interacting with Haruna, not really common that both protag dies at the end of the movie but it was done well.

I am glad Akito had Miura to take care of him, love him till the very end of his life, just like how he did for Haruna.

its a regret Akito didn't managed to see Haruna for the last time

Sidenote: I love how Yorushika sings my top 2 J-romance's theme song. 若者のすべて and 左右盲 are great songs