His eye follows her as she takes a seat on the couch, then does a little hop so he can turn to face her.

"I can consume my wearer's blood and imbue them with superhuman abilities in return by enhancing their innate abilities. As for Life Fiber itself, uh..."

Senketsu rubs the end of his scarf awkwardly.

"...I don't know. I don't remember a whole lot about how I came to be."