The daughters of Sesshoumaru and Inuyasha set out on a journey transcending time! In Feudal Japan, Half-Demon doubles Towa and Setsuna are separated from each other throughout a forest fire. While seriously searching for her more youthful sis, Towa roams right into a mysterious tunnel that sends her into present-day Japan, where she is located and elevated by Kagome Higurashi's sibling, Souta, and his family members. 10 years later, the tunnel that attaches the two ages has actually reopened, permitting Towa to be rejoined with Setsuna, that is now a Devil Killer helping Kohaku. But to Towa's shock, Setsuna shows up to have shed all memories of her older sister. Signed up with by Moroha, the little girl of Inuyasha and also Kagome, the 3 girls take a trip between both eras on a journey to regain their missing out on past.