Spirit Howling
Volume 4 Front
Cover of Unlimited Fafnir Volume 4, featuring Firill Crest
Vital statistics
Kanji 銃皇無尽のファフニール 4: スピリット・ハウリング
Romaji Jūō Mujin no Fafunīru 4: Supiritto Hauringu
Author Tsukasa
Illustrator Korie Riko
Published on April 2, 2014
Published by Kodansha Bunko
Publication order
Previous Crimson Catastrophe
Next Midgard's Carnival

Spirit Howling is the fourth volume of the Unlimited Fafnir series. It was released on April 2, 2014.


The contract with Yggdrasil. And that the compensation is the loss of memories. Iris, to whom Yuu confided his secret, decided to try and regain his memories. At that time, the girl who was designated as the worst disaster D, Kili, reappeared at Firill’s birthplace, the Principality of Erlia. In order to escort her to Midgard, Yuu and his friends head to Erlia. With Firill’s parents being the royal family, Yuu and the rest enjoy extraordinary events, such as the royal ball. However, before them appears the soul-consuming gold demonic bird—'Yellow' Hraesvelgr.

“Promise me—no matter what happens, absolutely do not forget this.”

No matter what I lose, I will protect you. With all of my soul—. The fourth volume of the Unlimited School Battle Action starts!


New CharactersEdit