
Set in the Tenpo era, the story follows Shinkuro, a veterinarian who has taken up residence in the Enma Row House of Naitō-Shinjuku. Though devoted to healing animals, Shinkuro is also a man of unwavering justice and a master of both swordsmanship and hand-to-hand combat. With his signature declaration, "You're worse than animals! I can't let you live!", he strikes down evil with fearless conviction alongside his colorful neighbors: ・Kichibe, the hot-tempered carpenter ・Jugo, the ex-constable turned warehouse official, and ・Mondo, former government astronomer turned ronin