Yuna had just made her first friend in Earth-land: a fire dragon slayer named Natsu Dragneel. He was two years older than her. She met Natsu when he and Igneel visited Planeus while he was training her. The two of them ended up sparring together then spent time getting to know each other while their dragon fathers chatted to catch up with one another. Right as Natsu and Igneel were leaving, Planeus told them that Natsu could visit any time because Yuna needed a sparring partner to train with that was more her size rather than dragon-sized. Nearly every day, Igneel would drop off Natsu to train with Yuna after she finished her training with Planeus. They would spar together then hang out and chat for a while until Igneel came back to pick Natsu up.
~Time Skip (About 1 Year)~
It was July 1st and it was time for the third quarterly dragon meeting that Planeus had to attend. The dragons held meetings once every three months or four times a year: January 1, April 1, July 1, and October 1. He decided to bring Yuna along with him this time. This was her first time coming to a dragon meeting and she was kind of nervous.
"Are you sure I should come with? I mean, I'm not a dragon after all. What can I even contribute?" Yuna asked Planeus who chuckled.
"Don't worry, you don't have to do anything. The other dragons bring their adoptive children with, so it's not out of the ordinary." Planeus answered Yuna. When they approached the meeting location, there were five dragons and five children already there. Natsu was fighting with a boy his age who had red eyes and black hair that spiked upwards. He also had metal studs on his face and ears. There was a little girl with brown eyes and dark blue hair that was crying as the boys fought. She looked to be around one years old. There were two other boys there as well. They were about the same age as the little girl. One of them had dark blue eyes and short blonde spiky hair. The other boy had red eyes and black hair in a buzz cut style. They both looked at Natsu and the other boy whom he was quarreling with admiration in their eyes. When Planeus and Yuna arrived, the other dragons turned their attention to them.
"Sorry to keep you waiting." Planeus apologized to the other dragons.
"Good to see you again Yuna." Igneel greeted Yuna.
"Yeah, you too Igneel." Yuna said as Igneel smiled at her. As soon as Natsu heard Yuna's voice, he stopped fighting with the black haired boy with metal studs on his face.
"Hey Yuna! Glad you're here. This jerk, Gajeel, keeps annoying me." Natsu said, pointing at the boy he was fighting with just a moment ago.
"You're the one who attacked first." The boy who must have been Gajeel said to Natsu.
"Well you started it by giving me a dirty look." Natsu said as the two of them started to argue. The argument then turned into a brawl. Natsu's scarf fell off in the scuffle.
"Hey, would you quit fighting?" Yuna said loudly while waving her hand at them, trying to get them to stop quarreling. When that didn't work, Yuna sighed and used her dimensional dragon slayer magic to break up their fight.
"Dimensional Dragon's Portal!" Yuna said as she held out her hands and produced two portals between the two boys right as they were about to clash. They had no time to stop to avoid running into the portals where they came out of the opposite portal running away from each other. They stopped running, confused on what just happened. Yuna then got their attentions.
"That's enough you two! I don't care who started it. Just stop fighting already." Yuna said to Natsu and Gajeel.
"Fine, fine." Natsu said as he crossed his arms and rolled his eyes. Gajeel just huffed and looked away with a grumpy pout on his face.
"Seems you have taught her well so far Planeus. My Gajeel couldn't even do anything about her move." A metal dragon said to Planeus who chuckled.
"You think so? Well I suppose I have." Planeus said proudly.
"That aside, perhaps we should start introductions." A white feathered female dragon said. The dragons then called over their children. Once they were all gathered, they began introductions.
"I am Planeus, the Great Dimensional Dragon. This is my daughter Yuna Sakai." Planeus introduced himself and Yuna to the group of dragons and children.
"I am Metalicana, the Iron Dragon. And this rascal is Gajeel Redfox." The metal dragon gestured to himself and the boy with black hair and metal studs to Yuna.
"I am Grandeeney, the Sky Dragon. This little one is Wendy Marvell." The white feathered female dragon said as she gestured to herself and the little girl with dark blue hair.
"I am the White Dragon, Weisslogia. And this one here is Sting Eucliffe." A white-colored bearded dragon with antlers and feathered wings introduced himself and the boy with blonde spiky hair.
"I am the Shadow Dragon, Skiadrum. And this is Rogue Cheney." A black scaled dragon with a mane of shadows and shadowy wings said as he introduced himself and the boy with black hair in a buzz cut fashion.
"And you already know me, Igneel, the Fire Dragon King and Natsu here." Igneel said as he gestured to himself and Natsu who smiled.
"Now that everyone has been introduced to each other, the meeting shall now commence. Children, we expect you to behave yourselves." Igneel said. Then the dragons began their meeting. Yuna and the other dragon slayers sat around in a circle as their dragon parents discussed matters amongst them. Wendy, Sting, and Rogue were a bit too young to really have conversations with, so Yuna just chatted with Natsu and Gajeel, mostly Natsu. She found out that Gajeel was seven years old, a bit more than two years older than her and several months older than Natsu. Natsu was almost seven, his birthday in six days. Natsu told her that Wendy, Sting, and Rogue were about one years old. Gajeel noticed that Yuna seemed particularly close to Natsu despite this being her first time attending a dragon meeting.
"You two seem awfully close." Gajeel commented while Yuna and Natsu were chatting with each other. They stopped talking and looked at him.
"We met about half a month ago. We've been sparring partners ever since." Yuna said with a smile.
"Yeah, Yuna is my best friend. Jealous?" Natsu said, smirking at Gajeel who scoffed. Suddenly, flashbacks of Yuna's memories of Izuku Midoriya played through her head. She went into a trance-like state as memories of her best friend from the world she came from flashed through her head. She began to tear up because she missed him. Yuna was snapped out of her thoughts by Wendy's crying. Natsu and Gajeel had started fighting again while Sting and Rogue stared at them in awe. She sighed and wiped the tears from her face. Standing up, she approached the two boys who were running at each other from opposite directions.
"Dimensional Dragon's Void!" Yuna shouted as she created a dark void between Natsu and Gajeel. The two boys immediately stopped running towards each other, both of them skidding to a halt, just before the edge of the void in the ground.
"You trying to kill us or something?" Gajeel yelled angrily at Yuna. Natsu just snickered. He knew Yuna's voids weren't dangerous since he'd fallen in them before while they were sparring. But he'd rather not if he could help it.
"I told you not to fight didn't I? Look you made Wendy cry again." Yuna said as she went over to Wendy to comfort her.
"And no, I'm not trying to kill you. You wouldn't die if you fell into the void I created. You'd just be stuck in there, feeling like you're falling for eternity until I decided open the void to let you out." Yuna said as she comfortingly rubbed Wendy's back as she began to calm down. Just then, the dragons approached the young dragon slayers. They were done with their meeting.
"Come Yuna. We're going home now." Planeus said to Yuna who nodded.
"It was nice meeting all of you. I'll see you later Natsu!" Yuna said to all the dragon slayers as she waved goodbye.
"Yeah, see you Yuna!" Natsu said as he waved back and smiled while he and Igneel left. The other dragons and their dragon slayer children left to go home as well. By the time Planeus and Yuna got home, the sun had just finished setting. It was time for bed, so they curled up together and fell asleep.
~END OF CHAPTER~
Thanks for reading chapter 3 of "Hero, Dragon, and Demon" my Izuku Midoriya, Natsu Dragneel, Asta Staria X OC crossover fan fiction. So at the beginning of this story Yuna is four years old. She is five years old for the majority of this chapter. Natsu and Gajeel are two years older than her so they're both seven years old. Wendy, Sting, and Rogue are six years younger than Natsu and Gajeel and four years younger than Yuna so they're about one years old.