Throughout history, Demons and Guardians have clashed over Earth, a precious gift from the Mother of all life. A fierce animosity lingers between them as Guardians shield humanity from the destructive Demons. In Neo-Shinjuku City, long after their peak, only a few Demons and Guardians linger, obscured from human memory. In the city's shadows, a powerful Demon schemes to dominate mankind. As the sole remaining Guardian rises to confront this threat, the future of humanity hangs in the balance. Adapted from Saki Okuse's Graphic Novel 'Twilight of the Dark Master (Shihaisha no Tasogare)' published by Shinshokan.