Two sisters haven't spoken in six years. One flower shop, one phone call, and six hours to figure out what actually happened between them. The movie doesn't leave the room, doesn't cut away, doesn't give you a break from watching two people circle around the same wound until one of them finally bleeds. It's a real-time thriller built entirely on dialogue and the space between what they say and what they mean. VTuber cast or not, this is the kind of suspense that only works when you're trapped watching two people figure out if they can still trust each other. By the end, you won't remember they're not live-action anymore.
Ao Sirotubaki lives a normal, quiet life running Hanagumi, a flower shop. Then her twin sister Beni contacts her for the first time in six years. Something happened to the two of them six years ago, and their reunion raises the question of what they will talk about. As their feelings mix, both of their lives start to change sharply. The film is a single-situation suspense thriller, and every role is voiced by VTubers.