Also known as: crimson beast

A spirit-beast which takes the form of a long-tailed lion around five-six feet in length with golden eyes, surrounded by red fire, tsutsuga have the ability to devour the souls of people, tigers, and leopards, and spit fire. They can interact with the physical world, their razor-sharp claws and teeth making them ferocious predators, but can be affected by mind powers, such as nenpa and hypnotic suggestion.

Legend has it that Holy Priest Shoudou trapped a male and female pair of the tsutsuga into the Tsutsuga Mirrors. The female tsutsuga has the power to devour spirits as well as the souls of living people who look into the tsutsuga's eyes, entrapping them within the Tsutsuga Mirrors. The male tsutsuga eats fire and exhales fire instead of air. Their cubs inherit both abilities.