ーGarnetEscapeー

The protagonist, Kishitani Koru, visits a certain abandoned school to cover it for work.
There, she encounters a lost girl, Sunao Jun, and ends up searching for Jun’s friend, Machida Chitose.
As the two of them search, they meet the video streamers Sato Rere and Sato Rara, as well as Kyoko Chitose, who claims to have been a teacher at the school.
They eventually find Machida Chitose, the friend of Sunao Jun—but then… ――――

[Translated from Official Site]