On July 21st, 2022, Tsuki Tasogare went missing after not coming home before her agreed-upon curfew.
An investigation was picked up, but after less than a day of little to no progress, her sister, Saturday, finds the lack of enthusiasm for finding her sister confusing, and gets impatient.
And so, she decides to look into it herself. Alongside her friends, Allison and Kotomi, Saturday hopes to uncover the secret behind her sister's strange disappearance... and isn't quite ready for what she discovers.
[From Steam store page]