Ichitarou, the young master of Nagasakiya, one of the top commercial stores in Japan during the Edo period, was born with a weak constitution that leaves him unable to go out much. He is always surrounded by his spirit companions, including a Hakutaku and an Inugami, who protect him. One night, Ichitarou steps outside and witnesses a murder, and from that day onward, bizarre murder cases keep happening all over Edo. So with the help of the spirits, Ichitarou's hunt for the culprit begins! Source: Crunchyroll Note: The first four episodes received an early screening at a special event on 23 August 2025 at the Sony Music Entertainment headquarters in Tokyo. Additionally, each episode received an early screening at a weekly special event at the Noitamina Shop & Cafe Theater in Tokyo, starting on 28 September 2025, with one episode screened each week. The regular TV broadcast started on 3 October 2025.