You Kogasaka returns to his hometown after many years, upon which he encounters a mysterious girl who calls herself Mare, a "Shinigami" who reaps nightmares.You Kogasaka returns to his hometown after many years, upon which he encounters a mysterious girl who calls herself Mare, a "Shinigami" who reaps nightmares.You Kogasaka returns to his hometown after many years, upon which he encounters a mysterious girl who calls herself Mare, a "Shinigami" who reaps nightmares.