So susumu and sakura stay together and we get to see an alternate reality (is it?) if tsusumu was still alive. Poor yumiko, she died and I wished we could see what happened to nana afterward.
All in, it was a short and heartbreaking story.

Heartbreaking? I don't know about that, but I really enjoyed it.

I thought he died and what we saw was a "what could have been" scenario. He gets hit in the had a lot..shit, sakura hits him with a cement block.