Ending up in Showdown Town by mistake, Hatsune Miku goes through the city to ask for help: indeed she's going to need it; especially if a particular bear and bird she recognizes are there to save the day!
Unexpectedly, Akito receives a text message from Touya. While Touya's message isn't anything out of the ordinary, Akito quickly discovers that he doesn't know Touya quite as well as he thought. What will happen when one message becomes the thread that unravels one of Touya's secrets?