Hanyou no Yashahime: Sengoku Otogizoushi - Ni no Shou

Synopsis

Outside Mount Musubi, which contains vast amounts of both demonic and spiritual energy, Jaken and Sesshoumaru wait. Jaken tells his lord and master that it is where the cat-eared teenage demon girl Rion has been sealed away for six long centuries. The girls become separated, but Moroha is capable of entering through the incredibly strong spiritual energy shield due to possessing spiritual powers. Rion finally awakens and tells Moroha that she can find Towa and Setsuna, but only if she is willing to let go of what she holds most precious. The quarter dog-demon girl breaks through with her sacred arrow and enters the border between the mortal world and that of the Afterlife, where is confused at seeing the gigantic skeletal corpse, unaware it is her paternal grandfather. Inuyasha and Kagome Higurashi are shown to have come down to terms to their fourteen-year imprisonment in the demon graveyard. Inuyasha tells Kagome that the fang of his mighty Tessaiga is stirring because it is trying to tell him something important. As the spirit of Moroha continues to hover throughout the graveyard, her scared arrows suddenly become restless and becomes emotional upon glimpsing Inuyasha and Kagome, whom she recognizes from the picture that her Uncle Sōta had shown her all those months ago. Kagome is excited upon seeing her firstborn child as a teenager, to which Inuyasha expresses how glad he is that his own child has been living fine without their parental guidance and love. Meanwhile, Towa is being tested by the voice of none other her middle school teacher Osamu Kirin, who informs her that she must let go of the modern era. However, Setsuna is taken to the Sacred Tree of Ages and finally meets the sleeping eighteen-year-old Rin within the unparalleled time-based entity very core. Setsuna then recalls how the song she plays on her violin was a memory that only her body could recall, realizing that she must have learned it from the woman she now sees. The Sacred Tree of Ages asks the half dog-demon girl how she feels getting to meet her mother again; explaining how her young human mother has not aged since being hidden within it for fourteen years since she gave birth to Towa and Setsuna, which had been aided by the elderly low-level miko Kaede, uppermost-level priestess Kagome Higurashi, and retired master demon-slayer Sango.

(Source: Wikipedia)