Great chapter, and I hope the series continues in this trajectory of powerful and beautiful emotion.
Natsumi's dying wish (next to seeing her boyfriend) was to get Ai and Yota back together; hopefully Ai and Yota don't disappoint her, and the two get the romantic ending together that they deserve.
Natusmi told Ai, "Make up with Yota. Just make even one more wonderful memory for you both." I'd like more than one, but you know what, I'll take what I can get at this point. Like Natsumi, maybe I can make peace with just one more wonderful romantic moment, too.