-Do not make a mistake - ◆ DUTIES 　At 2:00 AM, connect to 11 numbers using the old public communicator. ◆ PRECAUTIONS You must never get the order wrong. Do not speak, even if you hear a human voice. If questioned, you must answer: "I am a Kugibito." Do not use a mobile phone to communicate with anyone inside the Communication BOX. SYNOPSIS Desperate for money to start a life with his lover, the protagonist, Hachisuka Yuki, is lured by a high salary into accepting "a certain job." A Communication BOX (OPT) installed in a corner of the Tamasu District, beside the collapsed Natural Botanical Garden. Within that device, a gruesome ■■■■■ had taken up residence... Luckily, there seemed to be some signal, so I brought my smartphone with me. You're not allowed to make calls, but if you have any problems, you can look it up on the internet. Whether you ■■■■ Hachisuka, or ■■■■ them, is up to you. -Do not make a mistake -