This work is similar to the style of Yamato costume films, but the background takes place in the future Japan. In the city that never sleeps, Shinjuku, humans and monsters coexist peacefully. However, once upon a time, serial murders occurred one after another, and the criminal was a mysterious man named Kaimuku. Why would he, who was once the guardian of the street, "Crow", take revenge on humans? In order to prevent the murders from continuing, a new "Crow" was born, and the young man Otowa was chosen as the new guardian. New and old hatreds began to spread on the streets of Shinjuku. KARAS Story Summary In the city that never sleeps, Shinjuku, people have long forgotten the monsters around them, and everyone lives a flashy and decadent life. These two overlapping worlds have been maintained in order by Yuriyone and Crow since ancient times; however, this balance has begun to tilt, and Crow, who should have given up everything and become a street servant, suddenly calls himself "Kaixiang" and begins to take revenge on humans. Several strange murders have occurred on the streets, and the murderer is a mechanized monster called "Goza-zu" who has obtained a new body through Kaixiang. At this time, two men appeared on the platform of Shinjuku Station. One was Wu, an elite police inspector dispatched from the headquarters to investigate a bizarre murder case, and the other was a wandering monster named Yan who returned to Shinjuku to defeat Huixiang. Due to the common sense norms of human society, Wu has been unable to find clues to solve the case; in contrast, _ successfully tracked down Kappa, one of the members of the Imperial Throne. Just as _ aimed at the Kappa with a rifle, another pair of Yurione and Crow happened to appear at this time. They are the new city guardians born through the huge consciousness of Shinjuku.