Ryuugetsushou

In ancient times, a woman who mated with a mysterious beast gave birth to the Saishi—hybrid beings of human and animal lineage whose very bodies coursed with lethal venom. Throughout history, these creatures were exploited as living weapons during eras of conflict, only to be despised and cast out when peace returned. Cursed by their own nature, they existed on the fringes of humanity. Among the few remaining Saishi is Gen Tsukinosuke, a masterless samurai who wields a legendary blade known as the "Fangs of God." Set against the violent backdrop of the late Edo period, Tsukinosuke wanders a war-scarred land in search of his estranged sister. Along his journey, he encounters women consumed by despair who long for death, offering them a fatal embrace through his poisonous touch. Bound by an inescapable destiny tied to his existence as a Kaishi, he finds himself caught in the merciless tide of a collapsing era. As society fractures around him, Tsukinosuke struggles against both his cursed bloodline and the relentless currents of history threatening to swallow him whole.