This is an OVA (Original Video Animation) review, and therefor is extremely short and/or may contain mature content.
Akikan Anime Series:
Anime [12 Episodes] | OVA [1 Episode]
Anime [12 Episodes] | OVA [1 Episode]
The Review
This single episode OVA is based around everyone going to the hot springs. It's a good chance to relax, but knowing the characters, it'll be more chaotic then relaxing. The episode is actually more entertaining then the entire series and has more memorable moments. If I remember correctly, every character in the entire series that maters is involved, so it's best you watch it after finishing the series.