Princess Half-Demon: Legend of the Grim Comet

When Towa was 4, she woke up in an unfamiliar place with no memory of how she'd gotten there. Back in the feudal era, a suspicious fire destroys Inuyasha's village as well as a nearby forest. After getting his immediate family and friends to safety, he heads into the burning forest itself to save his nieces who have been missing since the disappearance of their mother, but he only finds Setsuna. 10 years later, a mysterious event near the Bone Eater's well may signal the re-opening of the portal between worlds, but why now? Surely there's a catch right? Whatever darkness is coming, threatens to twist time itself. As the border between past and future gets thinner and thinner, all their lives along with the fate of both worlds hang in the balance.