When I started watching this on Crunchyroll I had little idea what to expect; I didn't even know what genre it was although given the setting I suspected it would be a comedy. I hadn't watched much when I realised it wasn't just a comedy it was almost certainly going to turn out to be yet another harem series featuring plenty of fan-service...
This show follows the life of a teenage boy named sana, who returned back to his home town to be shockingly reunited with his childhood friends. And man this starts off as a slow pasted comedy then turns dark and deadly!