It took me 5 years to know, find and watch these specials and I have to say that I'm so happy I did.
I always loved the anime, it had a great sense of humor and the characters were great so watching it now makes me like it even more.
The specials are 2-4 minutes long with the last one being around 8 minutes, each one has a different short story. I found them all to be so cute specailly the last one since it showed that Kohina can feel loneliness and using the music/sound to present it was outstanding so credit to the director/sound
One of the things that stood out was the great voice acting, I love Kohina's voice, it's so soothing and pleseant to hear, I'm not sure if me from 5 years ago acknowledged it before but I'm happy to say I do now :D
I now only hope for the anime to miraculously get a sequel hopefully with the same staff but I don't want to keep my hopes high considering the manga is finished already despite the many sequels/remakes being done to older anime in these past couple of seasons or so.
Overall I would give the specials a 9/10, They were cute and entertaining for me.
Would recommend the original anime first then these specials after finishing it.