The vampire-exclusive chat app "Lovesucking Vamp" — "LoveSuck" for short — is a romance support app used by people who want to connect with vampires. And you, a user of the app, has arranged to meet in person with a vampire named Iori, whom she became close with on the app. There are still about 30 minutes until the meeting time, but you arrived at the station front earlier than planned and is waiting, holding her smartphone in one hand.