In an abandoned Tokyo overrun by bubbles and gravitational abnormalities, one gifted young man has a fateful meeting with a mysterious girl.
- Genre: Animation, Adventure, Science Fiction
- Studio: WIT STUDIO, Story, Nitroplus, Lawson Entertainment, Straight Edge, Warner Bros. Japan
- Keyword: adolescence, disaster, battle, gravity, anime
- Cast: Jun Shison, Riria, Alice Hirose, Mamoru Miyano, Yuki Kaji, Tasuku Hatanaka