A visual novel about a mysterious senpai and a suspicious case

A mysterious senpai. A serial murder case that has taken the world by storm.
And a giant, shadowy fish swimming at my feet...
What if all of them are connected and surround me like a circle?
What should I do?

◆Outline
Genre : Visual Novel
Play time : about 60 minutes
Ending : 2 endings + 1 extra scene

◆Staff
Scenario : Tsubakichi
Illustrations : Kato, Milk
Music : Aioi Aoha
Video : Hayu, Ashinai Apoda
Logo/UI/WEB design : B1ack Apric0t
Script : Toritsukiyarou, B1ack Apric0t
Direction : Pirumu, Joey
English Localization : Marta Güell
Chinese Localization : 346lab Localization
Spanish Localization : Shinzou translations
Production : D10RAMA