Gajeel Redfox & Levy McGarden vs. Kawazu & Yomazu

is a battle fought between Mage of Fairy Tail, Gajeel Redfox, S-Class Candidate of Fairy Tail, Levy McGarden, and Dark Mages of Grimiore Heart, Kawazu and Yomazu.

Prologue
After passing the first part of the S-Class Wizard Promotion Trial, Gajeel and Levy explore the island to look for the grave of Mavis Vermilion, the first Master, in order to pass the second part of the trial. While en route, Levy starts getting annoyed with Gajeel's loud complaining of wanting to pummel Salamander. Levy then states that he never seems to care about her since all he talks about is fighting someone else. Gajeel pats her on the head and tells her that if she wants him to mingle more with her then she should become strong enough to fight him. Levy becomes upset, mutters that she's small and weak and then runs away from Gajeel while calling him an idiot. While running, she mutters that Gajeel is a jerk and that she hates him. Suddenly, she hears rustles in the shrubs and two strange-looking Mages spring up from it and charge at Levy.

Battle
One of the Mages slashes his sword at Levy and tears her headband. She falls butt-first on the ground in surprise. The other Mage holds her with both her hands and pins her down on the ground. The one with the sword is about to slice up Levy when Gajeel suddenly comes in and blocks the blade with his arms. He mutters that it's hard to look after Levy because she's so small so she shouldn't leave his side, which makes her blush. They realize that the two Mages are from Grimoire Heart, which makes them question why the strongest Dark Guild is on the island.

Gajeel tells her that there are accidents in every job, especially in S-Class Jobs, and if they don't manage to take down the current hindrances, then they don't have the right to become S-Class Mages. Levy demands to know what their intention is. Yomazu uses his sword to write something in the air as he declares that they came to hunt for fairies. Yomazu's Magic, Orient Solid Script: Gō, creates a loud noise. Kawazu comes to charge at them and Levy tries to warn Gajeel but he can't hear anything because of the noise. She grabs Gajeel's shirt to save him from Kawazu. Cracked eggs appear from inside Kawazu's mouth and Kawazu uses them to shoot Levy and Gajeel with Egg Buster. Yomazu appears behind Gajeel and slashes at Gajeel but he dodges. Levy casts Solid Script: Silent to negate Yomazu's Magic. Free of the distracting noise, Gajeel hears everything once more and punches Yomazu in the gut. Kawazu attacks Levy with his bombs but Levy neutralizes them with Solid Script: Fire.

Yomazu casts Orient Solid Script: Zan and attempts to strike down Gajeel with his sword. Gajeel dodges his slashes but it hits the trees and they are immediately chopped down. He attempts to block the next strikes but they slash his skin. Kawazu's attacks on Levy become too many for her Magic and she becomes rained down on by the eggs. Yomazu casts Orient Solid Script: Kan and a beam of light pierces through Gajeel. He follows up with his Dark Sword: Narukami spell. Gajeel, bleeding heavily, falls to the ground. The two mutter that if all of them are at their level, then they can finish Fairy Tail before the main force even arrives. He struggles to get up, tells Levy to run and states that this is no ordinary war. Gajeel yells for her to warn the others and that he's enough for those two. Levy is hesitant but she complies with Gajeel's order. When Levy looks back, Gajeel tells her to go already. She pleads for him to not die as she casts Solid Script: Iron and a huge chunk of iron appears in front of Gajeel. He eats it and energizes himself for battle. Gajeel manages to stand up and declares that they made a mistake, laying their hands on Fairy Tail.

Gajeel casts Iron Dragon's Roar. However, Yomazu defends with Orient Solid Script: Bō. Kawazu backs him up with Heavy Egg Rain. Yomazu repeatedly slashes at him with his sword. Gajeel vows that his iron cannot lose to weaklings like them and retaliates with Iron Dragon's Sword that slashes Kawazu. Yomazu sees the opening, makes his sword longer with Tsuranuki and pierces through Gajeel's arm. Though in pain, Gajeel grabs Yomazu's blade and recalls the moment Makarov had invited him to join Fairy Tail and informed him that Juvia Lockser already did. In the flashback, Makarov offers him the "path to tomorrow". When offered his hand, Gajeel took it. With conviction, he proclaims that he is a Mage of Fairy Tail and destroys Yomazu's sword. He clasps his hands and swipes down a gigantic sword, Dragon Slayer Secret Technique: Karma Demon: Iron God Sword, defeating Yomazu.

Aftermath
Levy, along with Juvia and Erza Scarlet, later find Gajeel after his battle. The fallen Dark Mage informs them that the Dark Mages of the Seven Kin of Purgatory are coming for them. Erza sends out a red flare, indicating an emergency, and yells for everyone to move into battle formations.