The saint in "Inuyasha" is Kikyo.

Platycodon

A character in the Japanese comic "Inuyasha" and its derivative works. A shrine maiden with the most spiritual power during the Warring States Period. She was responsible for guarding and purifying the Four Souls Jade. She used her powerful spiritual power and precise archery to repel the monsters who were eyeing the jade. She was one of Inuyasha's most beloved women.

Later Kikyo was jealous of her secret admirer, Ghost Spider. Naraku, the half-demon entrusted by Ghost Spider, designed to turn Kikyo and Inuyasha into enemies. The seriously injured Kikyo reluctantly sealed Inuyasha who escaped with the jade, and then died with the jade.

Identity Background

Platycodon is a shrine maiden who protects the Jade of the Four Souls. She has powerful spiritual power and calm thinking and judgment. Usually, she can destroy her predecessor with just one demon-breaking arrow. The monster who came to steal the jade. But because Inuyasha, who came to snatch the jade fifty years ago, was in a similar situation to himself, he couldn't bear to kill him and spared his life, so a love story developed.

Unfortunately, the good times don’t last forever. In an accident, Platycodon took in the robber Ghost Spider. The ghost spider had a dirty desire for Platycodon, a beautiful witch, and hoped to take Platycodon as his own, and eventually dedicated his body to Monster, become Naraku. Later, the half-demon Naraku, who was entrusted by Ghost Spider, designed to turn the two against each other. The seriously injured Kikyo reluctantly sealed Inuyasha who escaped with the jade, and then died with the jade.