Unaired episode included in the eighth Blu-ray and DVD volume.

Ema visits Tina's house after a long time. While singing and spinning yarn, Tina and the children spend a peaceful time together. They reminiscence about Tina's foster mother, Natoria, who had the power to spin the yarn which once carried magic power. And now to the spinning wheel she used and left behind approaches an ominous shadow...

(Source: Official Twitter)