Yashahime: Princess Half-Demon - Season 1 (2020)

Moroha negotiates with Root Head to open the pathway to the feudal era. Towa decides to return to the feudal era with Setsuna and Moroha. When the portal opens and they travel back in time, they encounter the Spirit of the Tree of Ages.

Back in the feudal era, Towa and Setsuna take on a job to slay a demon Jakotsumaru, a demon boy who is stealing the bones of humans and animals. They meet up with Moroha, who arrives to claim a bounty for Jakotsumaru's father, Tokotsu.

Travelers are going missing one after another. Towa, Setsuna, and Moroha head to the northern mountains to crack the case, but instead they find a village completely overrun by ghost cats.

Towa goes to search for the Dream Butterfly. When she gets lost, she encounters a pirate named Riku, who is trying to find his ship. When Towa helps him out, Riku presents her with the real Kikujumonji sword.

Towa, Setsuna, and Moroha chase after Yotsume, who flees to Kyuki's lair. With the help of a Rainbow Pearl from Kyuki, Yotsume casts a spell on the girls to put them to sleep and discover their weaknesses through their dreams.

The girls take on a case to slay a demon, who happens to be Konton, one of the Four Perils. Konton wields a strong armor, making him a difficult enemy, but the girls receive help from a young demon whose father was killed by Konton.

The girls set out to slay the demon twins, Kinka and Ginka, who are wreaking havoc as they duel each other. When the twins discover that Towa and Setsuna have the Silver and Gold Rainbow Pearls, they posses their bodies to obtain them.

Towa and Setsuna learn about a pond that devours any human or animal that comes near it. When they go investigate it, they come across two siblings who lost their parents to the pond.

Konton sends the demon Nikosen, a former human sage, to kill Towa, Setsuna, and Moroha. Being lured to him by his poison, the girls battle Nikosen. But as the nighttime approaches, Towa suddenly finds her demonic powers are fading away.

The demon Totetsu, one of the Four Perils, is hunting down and devouring monks found throughout the land. Kohaku sends Hisui, Towa, and Setsuna, to find Hisui's father, Miroku, to guard and protect him from the man-eating demon.

Towa, Setsuna and Moroha go to slay a mountain god, Homura, who had abducted a beautiful girl. When the girls find him, Homura is shocked by Towa and Setsuna's presence, believing to have killed the twins in the forest fire years ago.

Riku recalls events that took place beginning 18 years ago, when Inuyasha receives a new Black Pearl. 4 years later, on the night of Towa and Setsuna's birth, Inuyasha and Sesshomaru learn of a cataclysmic event that needs to be stopped.

Konton barters with Yawaragi, Moroha's former master, to take Moroha's life in exchange for an item she seeks. Yawaragi appears before Moroha, and a showdown between master and pupil begins.

Riku informs Towa, Setsuna, and Moroha about the whereabouts of Totetsu and they set out to slay him. In their pursuit, Totetsu leads them to a ravine where, unbeknownst to the girls, Konton has set up a trap to ensnare and destroy them.

Towa and Setsuna break free from Konton's trap and defeat him. They meet up with Moroha to finish off Totetsu, but he flees the battle. The girls chase after him but are suddenly attacked and find themselves face to face with Kirinmaru.

The demon slayers are offered a chance to be employed by the deputy shogun, but they must battle against a group of bounty hunters, which includes Moroha. Not wanting Towa to get involved, the two parties try to keep the battle a secret.

While on the lookout for demons deep in the mountains, Setsuna reveals to Towa what occurred during the 10 years they were separated.

On the night of the new moon, Towa is visited by Riku and he reveals his intentions of gathering all seven of the Rainbows Pearls. During their conversation, Totetsu suddenly appears to attack the currently powerless Towa.

Zero appears before the girls and removes the seal suppressing Setsuna's demon powers. When Setsuna transforms and loses control, Towa and Moroha struggle to stop her rampage.

Towa and Setsuna hire Moroha to assist them with slaying Zero. They go to the location where the Great Dog Demon had perished long ago and find Zero, but Riku is there to defend her.

Kirinmaru arrives and intervenes in the battle by scattering the Rainbow Pearls. Zero, enraged with her brother, cuts ties with him and flees. Sesshomaru chases after her, leaving Towa, Setsuna, and Moroha to face off against Kirinmaru.