NO SPOILERS
A slice-of-life/comedy OVA was adapted from manga that got many award/nomination (Kono Manga ga Sugoi, The Next Manga Award, Manga Taishou).
Mainly focused on a Japanese Teacher who named “Hoshi” (means star).
There are 2 short stories in this OVA, the first is from the very first chapter of manga.
The great thing in this anime is ‘voice’. They did their good job and fit the characters.
Visual: OK. Art is same as in manga but the visual effect is BETTER than in manga. To made it easier to understand and more interesting, they put some details that manga doesn’t have.
Story: If you know some Japanese letter, shop or culture it would be more enjoyable because they play shiritori and mention about some Japanese shops and singer.
Overall is 7.5/10. I was surprised that anime is better than manga.