is significant because it explores the origins and connections of the characters through a new protagonist, Seiji Kashiwada, a math instructor who begins to regain the memories of Ryuji Takayama. It provides a definitive conclusion to the lore established across the previous five books. Amazon.com Why the Delay?
Tide serves as a direct sequel to both Loop and S , acting as the definitive conclusion to the series. It bridges the gap between the biological horror of the early novels and the virtual reality "Loop" universe. koji suzuki tide english translation