Natsu and the crew suddenly encountered a disruption of dimensions. Lucy lost some of her celestial keys during the incident. To retrieve the keys, all of them jumped into the crack of disruption and arrived into the realm.
Lucy, Natsu and Happy arrived at the demons’ territory, where frozen caves were everywhere to be seen. At one of the caves, troops of Skelesoldiers walked out with something holding on their arms. Then, they froze the stuff and brought them back to cave.
Lucy: These are all girly stuff.
Happy: Will there be fish?
Lucy: They’re not for you…But why did they freeze them? Natsu, do you think Persephone’s harp would be inside the cave too?
Natsu: Let’s interrogate one and we’ll find out!
Lucy: Wait! You’re gonna expose us!
Natsu intercepted a Skelesoldier, but it dropped its jaw after spotting them. Next second, the Skelesoldier whistled to raise the alarm.
Skelesoldier A: In-intruders! Intruders spotted!
Skelesoldier B: Freeze freeze freeze! Freeze every intruder!
Lucy: What-what happened! Don’t freeze me. I don’t wanna be ice-cream!
Happy: I don’t wanna be frozen!
Lucy pulled a whip attached to her waist, lashing the Skelesoldiers; Natsu also beat the reinforcement up one by one. In the blink of an eye, the two of them crushed the entire troops no sweat. Their bones got all messed up with skulls rolling on the ground.
Skelesoldier A: My head, I need my head back. Don’t go…Ouch! I hit someone!
Frost Savant: What’s wrong with y’all losers——Oh, we have “guests”.
Frost Savant walked out of the cave. He glared at the back-to-back Lucy and Natsu, and Happy peeping from behind once he saw the Skelesoldiers piling aside. Ignoring Happy, Frost Savant approached to Natsu and Lucy, with a water elemental sphere conjuring in the back.
Irritated by what Lucy said, Frost Savant splitted the water elemental power into several energy spheres. With a slight flick of his finger, the spheres locked on to Lucy and chased after her like meteors.
Lucy: Whoa! Why am I always being chased down in this realm? Virgo would’ve taken me underground if she were here!
Natsu: Darn it! I won’t let you hurt Lucy! Burn to ashes!
Frost Savant: Humph! We’re still nip and tuck. Get ready to be frozen for eternity!
The flame of Fire Dragon lit up on Natsu’s hands, fusing together into a giant fireball to be thrown at Frost Savant; The latter also conjured a water elemental sphere of similar size in return.
Frost Savant was blasted away when two immense energy collided, and the frozen harp in his arms was dropped to the ground.
Lucy: That should be Persephone’s harp— — Wait, Virgo’s key is stuck between its strings!
Natsu: Haha, get them both at once!
Happy: It’s my showtime now! Let me get Lucy’s key back!
Frost Savant: Crap! I won’t let this happen!
Frost Savant fueled all his energy into the frozen land; Ice spikes rose from the ground to attack them.
Happy flew up to dodge the attack then targeted at Frost Savant. The frozen harp was taken away from Frost Savant’s hand. Then Happy threw it hard towards Lucy.
Happy: Lucy! Catch it!
Lucy: Huh? But the key is frozen——
Natsu: I’ll handle it! Fire Dragon's Roar!
Targeting at the frozen harp in the air, Natsu successfully defrosted it. The harp and the key landed right on Lucy’s hand!
Lucy: It’s my time now——Open! Door of the Virgo Palace! Virgo, take us to leave!
Summoned by Lucy, the key shone brightly then melted the ice on the harp and the key. Virgo appeared out of the light, carrying Lucy and the other two to leave the demon’s territory.
Frost Savant: Humph! You’re not gonna be so lucky next time!
Led by Virgo, Lucy, Natsu and Happy returned to Persephone’s palace.Lucy was going to give the harp back to Persephone after ordering Virgo to rest, but Armstrong stopped her.
Armstrong: Wait! This harp is still a property of demons. I don’t want it back to Persephone and taint her pureness.
Lucy: But… I can tell that this harp means a lot to her, and the villagers’ crops are still waiting to be saved!
Armstrong: I can help with the crops, but I ain’t taking the harp back!
Happy: This dude is annoying.
Natsu: Exactly! What’s wrong with you? We’ ve been through a tough battle to get it back, and now you don’t want it!
Armstrong: Kid, stay out of this!
Natsu: You want a fight? Come on!
Lucy: “Ugh… Again?”
The noise of battle alerted Persephone. Once she saw her favorite harp, she hugged it and cried tears of joy.
Persephone: You’re back. The harp is not only for helping the villagers, but also giving me courage and support like a good friends…
Lucy: Do you really think that Persephone likes the harp simply because she has been missing Frost Savant? Sigh…Men truly know nothing about girls.
Lucy: Even I can tell that Persephone is never into that Savant. It’s all about the harp only. Don’t be jealous of that.
Armstrong: I didn’t…Sigh. Yes, I’m too paranoid.
Armstrong: “Persephone, this harp has become your companion now.”
Natsu: I don’t get what you’re talking about. Let’s go and save the crops!
With Natsu’s urge, the crew headed to the field. Persephone played her harp on the burnt ground, spreading the wonderful music to everywhere in the village. All of a sudden, the burnt crops were surrounded by a golden light, and they were revitalized when the light faded.
Villagers: Thank you, Madam Persephone!
Lucy, Natsu and Happy stood aside, feeling the cheers of the villagers.
Lucy: Finally settled, and I got my key back— — Natsu? Where are you taking me?
Natsu: The crack of disruption is over there! We gotta be hurry. Everyone is probably waiting for us there!