Proto-Indo-European mythology realm of Midgard. Other dragon-slaying myths are also found in the Germanic tradition. In the "Völsunga saga", Sigurd slays the dragon Fafnir and, in "Beowulf", the eponymous hero slays a different dragon. Reflexes of the Proto-Indo-European dragon-slaying myth are found throughout other branches of the language family as well. In Zoroastrianism and Persian mythology, Fereydun, and later Garshasp, slays Zahhak. In Slavic mythology, Perun, the god of storms, slays Veles and Dobrynya Nikitich slays the three-headed dragon Zmey. In Armenian mythology, the god Vahagn slays the dragon Vishap. In Romanian folklore, Făt-Frumos slays the fire-spitting monster Zmeu. In Celtic mythology,
Unlimited Fafnir Afternoon" from March 2014 to December 2015. As of March 7, 2016 the series is complete with four "tankōbon" volumes. An anime television series adaptation by Diomedéa aired from January 9, 2015 to March 26, 2015. The opening theme is "Flying fafnir", created and performed by trustrick, while the ending theme is "Ray of bullet" by Rina Hidaka and Manami Numakura voice actresses of anime heroines Iris Freyja and Mitsuki Mononobe respectively from episodes 1-12 though episode 12 was sung together with Hisako Kanemoto, Sora Tokui, Fumiko Uchimura and Ayane Sakura who are also voice actresses of Lisa Highwalker, Ariella