Disclaimer: I don't own Naruto or Star vs the Forces of Evil
It has been 300 years since Naruto has been imprisoned inside the crystal as Moon and Rhombulus approaches it. "Naruto has been crystalized for hundreds of years, I've got no idea what's gonna happen when we open this up." Rhombulus tells her as they approached the crystal trapped Naruto. "I can handle it." She tells him making Rhombulus nod his head and uses his powers to melt the top part of Naruto's body where his mouth and shoulders is but still keeping him trapped.
"Okay I'm out call me when you need me." He tells her and and leaves as Moon lifts up her wand and looks at the King of Darkness nervously. Naruto gasped for breathe as he falls face forward on the crystal. "Oh my god I killed him!" Moon yells out nervously but then she heard a faint voice. "B...4." She heard making her look at Naruto. "What?" She asked him confusingly not understanding what he was trying to say. "B..4." He repeats again making Moon even more confused. "Before? Before what?" She asked him but then Naruto lifts his head up and motions his eyes towards a vending machine saying B4 again. Moon looks at the vending machine and then back at Naruto.
Naruto nods his head while saying B4 again. Moon raised an eyebrow. "Okay." She says awkwardly and walks over to the vending machine and pays for the candy bar she goes back to Naruto and opens the wrapper and feeds him the candy bar. Naruto then used all of his new strength and pulls left arm out of the crystal and his glove revealing the purple veins from the dark magic spells he had used for years and grabs the candy bar and begins to eat it ravaged do to hunger. He sighs in bliss at the fact of eating his favorite candy bar. "How long have I been here?" He asked Moon wanting to know as he continues to eat the candy bar.
"Uh like 300 years." She tells him causing his eyes to widen in shock as he begins to choke a bit. "300 years?!" He asked her in pure shock he knew he was locked away a long time but he never expected it to be that long. He then took another bite of his candy bar when he then looked down and noticed his old wand in Moon's hands. "So you're the new queen?" He asked curiously making Moon confused. "Yes what of it?" She asked him making Naruto smile at her a good nature smile. "Well it's just you're far too young to be queen, unless..." He then gains a look of realization as he puts his hand to his mouth.
"Oh no, your mother is she?" He asked her as he felt he already knew the answer as Moon sheds some tears and nods her head yes. Naruto then gains a sympathetic look towards her. "I see I lost my mother too, when I was not much older than you are." He tells her as some tears came down his face at the thought. "Ever since mom...umm since I became queen, everybody's been looking to me to end the war and make all these big decisions, but I'm just a kid!" She says sounding frustrated as Naruto let's her talk since he knew she needed to get it all out and get it off her chest.
"I can't decide the fate of Mewni! I can't even decide which boy I like!" She tells him making Naruto nod his head in understanding. "I know how you feel." He tells her and begins to fix his hat which was crooked a bit. "But that's not why I'm here. I need you to teach me one of your spells from your forbidden chapter." She tells him as Naruto had to hold back a scoff at that as he raised an eyebrow. "Forbidden? Is that what they're calling my chapter?" He asked her a bit shocked but he felt he wasn't that surprised since he knew after he ran away with Globgor he didn't have the best reputation.
"Yeah sorry I didn't name it." Moon apologizes although she sounded kinda sheepishly. "But the point is I need a spell, that can destroy something that is immortal." She tells him making Naruto raised an eyebrow at that and he begins to rub his chin at this since he knew of the consequences of his using dark magic and how people should never abuse it. "Are you sure that's what you want?" He asked her wanting to be sure. "It's my only hope." She tells him making Naruto nods his head in understanding. "Well the spell you seek requires a magical contract I can give it to you, but once your enemy is killed you must give me something in return." He tells her making Moon tilt her head wondering what he could ever want but she felt it was only fair.
"Okay what do you want?" She asked him making Naruto look at her in eyes with a serious look on his face. "My freedom." He tells her bluntly shocking Moon. "What?!" She asked him in shock making Naruto smile at her a bit in a good hearted manner. "Oh I know it's a lot to ask, but I've been here for so long all by myself, I want to buy my own chocolate or those little shrink wrapped muffins at the bottom." He says as he chuckles a bit at the thought.
"But these are Rhombulus's crystals I can't free you." Moon tells him making Naruto chuckle a bit. "A contract between two royal members of the Butterfly family whatever it'd be a king or queen is stronger than any crystal." He tells her and then he gains a serious look and brings out his hand for Moon to shake. "Now do you want to learn the spell?" He asked her. Moon smiles and grabs his hand and two ribbons that was made from magic appears and wraps up Moon's arm as her cheek marks glow a bit and the same thing happened to Naruto as well sealing the contract between them.
Naruto then motions her closer to him. "Come close." He tells her and begins to whisper the spell to her. He then smiles at her when he was done. "And aim it directly at his heart." He tells her the instructions for his spell but when he was finished he was crystalized once more by Rhombulus. Moon then turns to Rhombulus. "What was that for?" She asked him making Rhombulus shrug at him. "I'm just doing my job your majesty evil king gotta freeze it." He tells her as Moon looks at Naruto.
"He didn't seem so evil." She says and then she left with Rhombulus. Years later Moon was much older now and was married and had a daughter of her own whom had just killed Toffee making her return to Rhombulus's domain to see if Naruto was still trapped. When she saw that he was she sighed with relief and walks away not even noticing the crack in the crystal.