Unknown Time Unrevealed Flow

25 year old Kaminary lives with his brother ; Daichi in Tokyo. Recently there's news about murders. In the news Kaminary get to know that, his middle school close friend has been murdured by the Rintoki Gyu . Hearing that Kaminary rushes to the spot. On the way, Kaminary got hit on the head with a iron rod by a certain someone. Due to intence damage Kaminary knocked out. When Kaminary gain his consciousness, he found

himself 10 years to the past! now let's see how things turn out !!!