Kagome, a junior high school girl in Japan's Sengoku Period, accidentally travels through time and space through the bone-eating well of her shrine to Inuyasha, a half-demon hybrid of monsters and humans in Japan's Sengoku Period 500 years ago, in order to find the jade fragments of the four souls scattered everywhere. Because of the jade of the four souls in his body, he was forcibly pulled into the bone-eating well by the monster hundred-legged demon woman, and fell into the Warring States period 50 years after Inuyasha was sealed, and met Inuyasha who was sealed on the sacred wood, and untied the boy's seal as a last resort. In the ensuing battle with the youkai, Kagome's arrow hits the Jade of the Four Souls, scattering it into pieces. Inuyasha, who wants to become a big youkai, has no choice but to accompany Kagome, who can see the jade of the four souls, to accompany Kagome to find the fragments that are falling everywhere, and the journey to find the fragments of the four souls begins!