Klaus Lunettes, Letoile Becquerel, and Yuno vs. Foyal Migusteau

Klaus Lunettes, Letoile Becquerel, and Yuno vs Foyal is a fight that takes place inside of the Golden Dawn Base.

Pre-Fight
Zenon of the Dark Triad and two of his Dark Disciples, Gaderois and Foyal, attack the Golden Dawn Base in order to capture William Vangeance and kill all of the other magic knights that reside within it. While Zenon confronted WIlliam (and Alecdora), Gaderois and Foyal fought the rest of the squad in the entrance and the interior, respectively. Before Yuno arrived, Foyal had already killed and severely injured multiple magic knights including Hamon Caseus while Klaus and Letoile being the only ones who could withstand his assault.

Fight
Klaus and two other Golden Dawn members were protected by a defensive barrier as Foyal taunted them saying his status as a Tier 0 mage makes him unbeatable. As Foyal launches large attacks at Klaus and his two compatriots, Letoile remarks how she can barely protect herself from the mist with her Compass Magic. She flashes back to the training the Golden Dawn had to do in order to try and harness the magic left behind when the Elf Tribe possessed their bodies and were exorcised by Asta, Licht, and William. She thinks to herself that the training was not enough especially as they have been effortless beaten back by the Dark Disciples.

Foyal commends Klaus on being able to withstand his attacks despite getting injured in the process. Klaus refuses to given up to the enemy while Foyal prepares to finish him off. However, Yuno breaks through the mist after defeating Gaderois which interrupts Foyal. Recognizing the danger posed by Yuno, Foyal uses his spell Sealing Spectral Hands to grab Yuno who was unable to dodge due to his injuries from his previous. However Yuno's intervention combined with Foyal's diverted attention, allowed Letoile to rush towards him with Another Atlas which dispelled the mist in the room. Using the advantage he has now, Klaus attacks the Dark Disciple with Blazing Spiral Lance, either killing him or knocking him out in one hit.

Post-Fight
Klaus, Yuno, and Letoile start to chat on Yuno's regard to Klaus and prepare to help the rest of their squad when Zenon comes down from the upper floor with William impaled on his Bone Magic. Zenon, unscratched from his fight, wonders why the Golden Dawn has not been not wiped out.