A story about three sisters struggling to survive in a desolate world surrounded by decaying buildings and red fog. The story revolves around Rin, a girl with an updo. There’s also Ritsu, the big sister who has cat ears and is always calm, and Rina, the innocent, cheerful one dressed in a maid’s costume. Just what is it that these sisters are after in this mysterious world? – Amazon
Streaming: Amazon Prime Video
Episodes: 12
Source: Original
Episode Summary: Rin and her sister Rinako are out on a dangerous search for fresh water. They happen to find a hidden pool of it in an abandoned ship that’s been grounded on their island. They have little time to celebrate, because they’re constantly being hunted by the gigantic red bugs that fill the air with toxic fog. Rin dispatches one, but Rinako isn’t so lucky; though she takes one out on her own, her injuries are too severe and she fades away. Rin must take this bad news back to big sister Ritsu and the remaining four Rinas waiting back at home.
Ritsu uses her power to siphon the water into their holding tank, bringing all manner of debris with it. Soon they hear a splash and discover a very strange-looking bug swimming in the tank. This bug can talk, calls himself “Wakaba,” and almost looks human, but the sisters are cautious. Rin attempts to dispatch him by using one of their special leaves, but the glowing green power only seems to heal this strange creature. When another bug attacks, Wakaba tries to prove he isn’t a threat by leading Rin to its hiding spot. Even so, Rin doesn’t know what to do about him and finds herself confused.