Tenkuu Shinpan
English title: High-Rise Invasion
Japanese title: 天空侵犯
Alternative titles: Sky-High Survival, Sky Violation
Type: ONA
Source: Web manga
Episodes: 12
Status: Finished Airing
Aired: Feb 25, 2021
Duration: 24 min per ep
Rating: R - 17+ (violence & profanity)
Studios: Zero-G
Producers: Kodansha
Genres: Action, Horror, Mystery, Suspense
Themes: Gore, Survival

Upon witnessing a man's head cracked open with an axe, 16-year-old Yuri Honjou trembles in fear and confusion as she flees from the masked assailant, only to find out she's trapped in an abandoned building where every door is mysteriously locked. Desperately searching for a way out, Yuri runs to the rooftop, but a world with no signs of life stands before her, surrounded by high-rise buildings. Though filled with despair, once she learns that her brother is also in this strange place, Yuri is determined to find him and escape.

However, she soon finds that there are more masked murderers in the area, anxious to terrorize their newfound victims and satiate their sickest desires, leaving Yuri to question if they will be able to make it out alive.

[Written by MAL Rewrite]