"Yashahime: Princess Half-Demon" is a manga series that serves as a sequel to the popular "Inuyasha" series, continuing the story in the feudal era of Japan. The narrative centers on the daughters of the original protagonists, Inuyasha and Kagome, and Sesshomaru. The main characters are Towa Higurashi, Setsuna, and Moroha, each representing a unique blend of human and demon heritage.

Towa Higurashi, the eldest daughter of Sesshomaru and Rin, is separated from her twin sister Setsuna during a forest fire and transported to modern-day Japan. Raised by Kagome's younger brother, Sota, Towa grows up in a world vastly different from her own. Setsuna, on the other hand, remains in the feudal era, losing her memories and becoming a demon slayer under the tutelage of Kohaku. Moroha, the daughter of Inuyasha and Kagome, is a bounty hunter who inherits her father's demonic powers and her mother's spiritual abilities.

The story begins when Towa discovers a portal that returns her to the feudal era, reuniting her with Setsuna. Together with Moroha, the trio embarks on a journey to uncover the mysteries surrounding their parents' disappearance and the emergence of a new threat: the Dream Butterfly, which is linked to Setsuna's lost memories. As they travel, they encounter various demons, allies, and adversaries, including Kirinmaru and his daughter Riku, who play pivotal roles in the unfolding events.

The plot delves into themes of family, identity, and legacy, as the young heroines grapple with their dual heritage and the responsibilities that come with it. The narrative intertwines their personal quests with larger conflicts, such as the resurgence of the Grim Comet and the machinations of Kirinmaru, who seeks to alter the timeline. The series also revisits familiar characters from "Inuyasha," providing continuity and depth to the story.

Throughout the manga, the protagonists face numerous challenges, both physical and emotional, as they strive to protect their loved ones and the world from impending doom. Their journey is marked by battles, alliances, and revelations that gradually piece together the puzzle of their parents' fate and their own destinies. The series balances action, drama, and moments of levity, maintaining a tone that appeals to fans of the original series while introducing new elements to captivate a broader audience.