Random personal rambling: I think i watched the tv series in 2013 and its quite an weird experience going back to this after 3 years. Makes me wonder why they bother making such a short after the anime's been done for quite a while. The short gets quite sentimental and reiterates the bittersweetness of graduation and parting ways, and it makes me wonder if I would've gotten sad had i watched it back then or perhaps that effect works better after the fact. Because, I was in university back then, and now I don't keep in touch with the friends i had back then i anymore, so in a way the timing in which I watched this short with 2 different perspectives time fits more appropriately.
