These characters belong to Square Enix, not me.
"Mama! Papa!" A four-year old brunette girl cried while racing back to her home on the tropical island of Besaid, her cerulean skirt swishing around her legs as her oversized, colorless T-shirt flapped in the wind with a large, dark blue cat-like humanoid dashing after her.
The soon-to-be Summoner known as Braska leaned down and picked up his daughter as she rushed towards him. "What is it, my little Yuna?" He questioned as he noticed her panicked state.
"Someone washed up on the shore and he doesn't look good!" She informed him as she hopped out of her father's arms and grabbed his hand to try to drag him to the beach.
Braska hurriedly followed his daughter with his wife trailing behind them and soon beheld a boy no older than eight lying near-motionless on the coastline. He tenderly took the sopping-wet, sapphire-headed child into his arms and examined his tattered clothing, abnormally elongated, sharp fingernails, and the visible veins ringing his face. "He's not human, at least not completely. Well, we had better take care of him since it seems like his parents aren't around."
They headed back to their home with their newest, adopted addition to their family and tried to make him as comfortable as an unconscious, eight-year old boy in unfamiliar surroundings could get.
A couple of days after the strange boy's arrival, Yuna was sitting on her bed in her room, where he was recuperating on a cot, with two of her friends, Lulu and Wakka, along with her Ronso bodyguard, Kimahri. Lulu was already training to be a black mage and Wakka had gotten into blitzball. The Ronso had been with her since she was born, ever vigilant about her safety.
"Well, here he is." The small girl announced to her older friends. "We found him two days ago on the shore like a drowned rat and he still hasn't woken up." She tucked the blanket a little tighter around the bizarre youngster and he squirmed slightly at her action. "Plus he always does that if someone touches him."
Wakka looked down at the child's face with his head tilted slightly, making the carrot-colored wave of hair on his head appear crooked. "I think he looks kind of funny."
Lulu immediately elbowed him in the ribs lightly. "Coming from you. I read about a race like him in a book once. I think they're called Guado. He doesn't look like the ones in the book, though."
"Interesting. At least now we know what he is." Yuna said as she lightly ruffled his hair, not expecting him to wake up at the contact.
He opened his eyelids slowly until he could see, then instantly and rapidly crawled backwards and fell off the makeshift bed in his haste to get away from the little girl next to him. Unfortunately for him, the blanket that had been wrapped around him had ensnared him in its clutches, binding his limbs even further the more he continued to struggle.
Yuna gasped and hurriedly tried to free him from his cloth prison, only calming down when he had the blanket draped around his shoulders while the rest of it covered the rest of his body.
The boy looked up at her fearfully once he was freed. "W-where am I?" He asked her while shivering.
She looked at him curiously, not seeing why he should be fearful. After all, there were very few strong fiends on this island, all of them, regardless of strength, stayed away from the village, though, thanks to the crusaders. "Besaid Island." She replied to the trembling boy as she reached a hand out to try to soothingly stroke his hair.
He instantly recoiled from her hand, clearly not interpreting her gesture as a benign one. He tried to crawl even further backwards away from the girl, but his hand touched soft cloth instead, claws nearly ripping a hole in it. The boy turned his head back and noticed he was in a tent made of dark blue fabric, sunlight barely streaming through the shadowy material. "W-who are you?" He asked just as timidly as the last question.
"I'm Yuna. This is Wakka, Lulu, and Kimahri." She told him in her most soothing tone, gesturing to each of them in turn. "Who are you?"
He turned his head to each of the people in the room as she pointed them out, then focused back on the girl now known as Yuna when she asked the question. "S-Seymour Guado." He stuttered as his fear-filled eyes fell on the menacing-looking Ronso again.
Lulu knelt down in front of him and looked at him. "So he is a Guado."
He turned his head to the girl in front of him with anger on his features. "Half." He spat out bitterly. "My mom is-was," he quickly corrected himself, "a human."
"Was?" Yuna questioned curiously. "You mean she died and didn't get sent?" She asked, rocking forward on her knees, too naïve to know just how personal the question she inquired of him was.
The boy known as Seymour finally snapped at that point and let out a pitiful wail of utmost sorrow before burying his face in the blanket around his body as his form shook with unrestrained sobs.
"Well, well. Looks like our guest has finally awoken." Braska commented as he leaned against a dresser, eyes twinkling with amusement at his daughter's panicked state, as though she had done something wrong.
Yuna immediately whipped her head back towards her father and rushed to his side before hugging him, nearly on the verge of tears herself. "I-I don't know what I did wrong, Papa. I just asked him what happened to his mama."
He stroked the back of his daughter's head until she calmed down, then knelt down in front of the eight-year old and drew him into a gentle embrace. He felt the child struggle slightly in his arms before reluctantly relaxing and leaning against his chest. The soon-to-be-summoner picked him up once he fell asleep and set him back on the cot before going out of the room with Wakka and Lulu following him.
Little Yuna, on the other hand, nervously walked up to the half-Guado and rand a hand through his azure hair. "What has happened to you to make you like this?" She whispered.