The last four pages are incredible. The second frame of page thirteen - where Tsune's eyes are pure white and her scarf is blowing off to one side in a wide open space - conveys distant yearning in a way that I can't put into words. Her blank eyes make her seem like a ghost, or a siren.
I've also felt Asaki's revelation, where love bursts within, overwhelming your nerves and thoughts, and you cry and cry and cry. There isn't anything that can prepare you. Sometimes you can talk with a person for months, without feeling anything at all, before the madness hits. Asaki's face on the final page really captures the shock and euphoria.
Then you have the text with the platform fading into white, a single moment of transcendence becoming eternity. 'I wished from the bottom of my heart, that I could keep riding along these tracks together with her, forever and...'
Oh, I'm gushing, and I'm getting all flowery, but I love it so much.