Kazuki struggles with communication, and he is not alone — popular upperclassman Kotone, cheerful childhood friend Miyu, and blunt underclassman Rena each have their own version of the same problem. Through a social networking platform called Communis, specifically a community called "Ningen Shikkaku" for people who find real-world connection difficult, Kazuki slowly finds his footing. Whether he can take that progress into the real world — and whether one of these three becomes something more — is what the game explores.