Tear Lightning (ティア・ライトニング, Tia Raitoningu) is one of the main female characters in the Unlimited Fafnir series. She is a D, Student No 9 of Brynhildr Class and a member of the Counter-Dragon Squad. After the events of Volume 6, she became the new core of 'Green' Yggdrasil, turning into an existence similar to a Dragon.