卒業~Graduation~

Personally, I love this OVA. I met it at a time when I was about to graduate high school, and I think it approached the subject in a much more realistic way than most other anime or media in general about the subject. It acknowledges that we won't be best friends with our high school friends forever, and that's okay. Graduation encourages the viewer to appreciate the time of life they are currently in, instead of wishing it away. Also the character designs are incredibly 90s in a really charming way. Go watch it, okay?