High-school girl Yuri suddenly finds herself on the rooftop of a high-rise building. She's trapped in a bizarre world surrounded by skyscrapers, where a masked man cracked open a man's head with an axe before her eyes. Finding a way to survive this bizarre world, find her beloved brother, and escape becomes her top priority, but she is beset by danger not just from the mysterious Masks, which possess both inhuman strength and cruelty, but other survivors turned cruel or desparate by the insanity of the high-rise world.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | I Just Don't Get This World | 2021-02-28 | 25 min |
| Season 1 | Episode 2 | I've Found a New Goal | 2021-02-28 | 25 min |
| Season 1 | Episode 3 | I'm Sorry, Mayuko Nise | 2021-02-28 | 25 min |
| Season 1 | Episode 4 | I Won't Give in to This World | 2021-02-28 | 25 min |
| Season 1 | Episode 5 | That's an Incredible Ultimate Weapon | 2021-02-28 | 26 min |
| Season 1 | Episode 6 | If I Become a Perfect God | 2021-02-28 | 25 min |
| Season 1 | Episode 7 | I Will End This Realm | 2021-02-28 | 25 min |
| Season 1 | Episode 8 | I've Cast Off My Humanity, But That's Fine | 2021-02-28 | 26 min |
| Season 1 | Episode 9 | Which Of Us Will Live a Cool Live? | 2021-02-28 | 26 min |
| Season 1 | Episode 10 | Our Enemy is One Who Desires Chaos | 2021-02-28 | 26 min |
| Season 1 | Episode 11 | I AM Justice! | 2021-02-28 | 25 min |
| Season 1 | Episode 12 | This is a High-Rise Invasion | 2021-02-28 | 27 min |
| Visual Effects | Yoichi Ueda | Character Designer |
| Visual Effects | Yoichi Ueda | Supervising Animation Director |
| Sound | Yoichi Sakai | Original Music Composer |
| Sound | Tatsuo | Original Music Composer |
| Art | Junki Taniguchi | Art Direction |
| Art | Hiroshi Ogawa | Prop Designer |
| Visual Effects | Yuko Kobari | Color Designer |
| Camera | Kosuke Tanaka | Director of Photography |
| Visual Effects | Tomohiko Kan | 3D Director |
| Crew | Tomohiko Kan | CG Supervisor |
| Editing | Masaki Utsunomiya | Editor |
| Sound | Masahiro Takata | Sound Director |
| Sound | EMPiRE | Theme Song Performance |
| Visual Effects | Yuji Ushijima | Supervising Animation Director |
| Writing | Touko Machida | Series Composition |
| Art | Hiroyuki Nemoto | Art Designer |
| Directing | Masahiro Takata | Series Director |
