Towa Higurashi was captured by a feudal lord who interrogates her about some items from the future in his possession, including a book from the Reiwa Era and the seat from Kagome's bicycle, but Towa refuses to comply, certain that sharing info from the future will alter the past. The story then shifts back to six months later after Kagome started living in the feudal era with Inuyasha and her other friends.
Inuyasha and Miroku fight the Root Head, a demon who was sealed by Kikyo many decades ago, but the enemy escapes. Unaware of Kikyo's death and mistaking Kagome for her, the Root Head attacks Kagome and she joins Inuyasha, Miroku, and Sango to destroy it, unaware that a small part of the demon has survived. Back to Towa, she is rescued by her twin sister Setsuna and their first cousin Moroha, who realize that the lord attendant is the ayakashi Yotsume in disguise and chase after it but before departing, Towa confiscates the book and the seat from the lord.
Tropes:
- Bloodless Carnage: Two samurai warriors were passing by a village until Root Head decapitates them, with no drop of blood.
- Dude Where Is My Respect: Inuyasha still has this problem when he and Miroku were hunting demons together, and local villagers praise Miroku over him.
- Human Resources: How Root Head regenerates after years of being sealed away.
- In Medias Res: The story flashbacks to 6 months after the end of Inuyasha.
- Off With The Head: Root Head's systematically murders its victims by decapitating them.
- Sealed Evil in a Can: Root Head is introduced as the previous demon Kikyo sealed away prior to meeting Inuyasha.
