Yashahime: Princess Half-Demon: Season 2, Episode 1

2 - 1: What It Means to Wield Tenseiga

Jaken, Kirara, Mō-Mō, Moroha, Sesshōmaru, Setsuna, Tōtōsai, and Towa are in the war zone. During Towa's first attempt to use Tensaiga, she encounters The Dream Butterfly, which communicates Rin and The Tree Of Ages, and flies towards them. Not long after they are surrounded by Devils From The Underworld. Greatly Outnumbered, Moroha and Tōtōsai forge a Sword for Setsuna and takes the burnt out Tensaiga in for repairs.