Hello my dear readers. How are you all doing. As I've promised here is my Tsukkiyama Pokemon AU fic. As I did with my last fic, the Tsukkiyama mermaid au, I plan to post one chapter a week. When I am going to skip a week I will warn in the chapter prior. I tend to post chapters on Fridays or Saturday. I hope you will all enjoy this little fic. I do enjoy Pokemon so much and have always dreamed of making a pokemon AU fic for myself.

You will find out very soon that I am a very big fan of the Kalos region and that is the region this fill will mostly take place. Everything in this fic will be pulled from gen 1 to gen 7 content (the current gen). The vast majority of this Pokemon AU will be taken from the games with small influence from the anime (such as the league competition) but if you were to ask me what world this is from and it's history I would say it's more closely lined up with the game's canon with Red than with the Pokemon canon with Ash.

I may reference some characters from the Pokemon games and characters such an Nurse Joy and Officer Jenny as well as the professors will appear in this fic. Most characters from the Pokemon series will mostly play as background characters just to make it feel like it is really being set in the Pokemon world.

I am unsure how many of you are acquainted with all gens of Pokemon but I am going to write with the assumption those reading this are well enough acquainted with the Pokemon universe. You don't need to know anything about prior anime/game plots really but if you don't know what a Net Ball or a Luxury ball than you may need to reference wiki, though things like that don't really matter plot wise. Do let me know if you all feel like you need an explanation on Items or Pokemon in this fic and I can add some footnotes at the bottom for you.

I do plan on fiddling with the age of when a trainer goes out on journeys and how compitions work since the game/anime just kind of has 10 year olds battling 50 year olds in the league. If meddling with the anime system ain't your cup of tea than I am sorry. I will post a better explanation of how the league works in a later chapter.

As for the Tsukkiyama in this fic it is going to probably be very slow going. It won't be as to the point as my last fic. This fic will focus heavily on them as trainers and their growing love is more of a side dish. I call this a Tsukkiyama fic as a point for those who may not care for the ship (I for one LOVE IT). If you are looking for something that is solely focused on Tsukkiyama than take some time to read my mermaid AU as that is more of a traditional love sorry. This Pokemon AU fic is going to lean more towards adventure! HURRAY!

I'd like to think my beta reader heichousheadphones ( ) for taking time from their busy day to help me with my horrible grammar and for also helping me go through the thinking process while writing this little fic.

Disclaimer: I do not own Pokemon or Haikyuu! Duh! (Do people even do this anymore?)

With all that being said I am very excited to debut my Pokemon AU Tsukkiyama fic! I hope you enjoy!

The Day We Met

"What a loser!" the cruel sneer of a young trainer echoed down the path of route 2. Three sickening cackles filled the air as a small freckled boy was pushed roughly into the dirt.

Several frightened Pikipek took flight from the nearby tall grass as Yamaguchi fell hard to the ground. Yamaguchi's small arms clamped desperately around his fainted Popplio as he did his best to protect his beloved partner from the beating of the bullies. As the sun set over the tropical ocean the three long shadows of Yamaguchi's tormentors surrounded him. Yamaguchi held Popplio close as he failed to muster up the courage to fight back.

"A freckled faced loser like you shouldn't be allowed a Pokemon!" one of the boy sneered as he kicked dirt into Yamagichi's face. Yamaguchi closed his eyes as the dirt made a direct hit. Some particles got into his mouth causing him to sputter.

"He couldn't even win a single battle! How long have you been traveling anyways?" laughed the third largest boy cruelly. "A loser like you shouldn't be called a trainer."

The boy's words were true and they cut deep as tears began to form in Yamaguchi's eyes. He and Popplio had been traveling for three days and all he had to show for it were these three bullies who wouldn't lay off.

"Look! He's going to cry," the first boy pointed out loudly, a wicked grin decorated his face.

"Not again," the second boy mocked as he loomed over Yamaguchi. "What a cry baby. Maybe if he cried enough it can wash away those freckles from his ugly face."

Tears trailed down Yamaguchi's cheeks as he looked to the three bullies afraid to make a move. This wasn't the first time he had run into them. The last time he had stood up for himself it had ended with several bruises and most of his money stolen. He held Popplio close as they kicked dirt in his general direction once more.

"We won this last battle so what are you going to give us this time, crybaby?" The largest of the boys sneered. Yamaguchi chose not to reply as he glared up at his bullies.

"If he doesn't have anything good on him than we should just take his Pokemon!" one of the bullies suggested as they closed in on Yamaguchi.

"Good idea," The larger bully growled. "I've always wanted a Popplio."

"No!" Yamaguchi squeaked, scooting away in a panic. With the bullies now surrounding him, Yamaguchi had nowhere to run.

"How pathetic," a dry voice cut through the warm tropical air.

"What! Who said that!" spat the largest of the three as they all stopped their pursuit on Yamaguchi, straightening up to see who the offender was. Yamaguchi glanced up hoping to get a look of his saviour.

Strutting over to the four boys was a blond boy who was much, much taller than any of them. He had a cocky smirk on his face as he closed in. The boys amber eyes studied the three bullies before making eye contact with Yamaguchi. A boy like this would have normally terrified Yamaguchi but at the moment Yamaguchi could not help but look to him for help.

"Who are you?" spat the largest bully as he sized the blond boy up.

"What's it matter to you?" The blond boy challenged as he loomed over Yamaguchi's bullies.

"A-are you looking for a fight?" one of the other bullies sneered, though his voice wavered a bit.

"Bring it!" the blond boy cooly replied without a three bullies resolve seemed to shatter as the blond boy took another step forward causing the size difference to show twofold.

"Y-You're lucky m-my P-Pokemon are t-tired!" the largest of the bullies stuttered as he backed off. The other two bullies looked to their friend in mild shocked before following suit.

"Such big talk for so little to show," the blond boy mocked.

Yamaguchi's eyes grew in amazement as the three bullies back off even more. The three boys looked simultaneously furious and terrified. The blond boy was simply amazing. Yamaguchi's eyes grew in awe as he looked at the snarky blond boy.

"You better watch your back, kid," one of the bullies spat none too threatening. With that the three turned tail and ran like cowards in the direction to route 3.

"Oh, I'm so scared," the blond boy called after before exploding into a condescending fit of laughter.

Still on the ground, Yamaguchi's eyes grew in utter awe as his saviour's laughter dies down. How had he been able to stand up to those bullies so easily? Yamaguchi wished more than ever to be as brave as this boy.

The blond boys sharp amber eyes shot to Yamaguchi, making direct eye contact with him. Still in awe Yamaguchi did not flinch as the tall boy took a few steps towards him. The two held their gazer for a long quiet moment. The sound of the rolling ocean could be heard in the distance as Yamaguchi felt something pass between himself and his saviour.

"You should get your Popplio to the Pokemon center," the blond boy pointed out flatly.

"Huh?" Yamaguchi gasped as he came back to reality. He still held his fainted Popplio tight in his arms. "Oh right," he said more to himself than to the boy.

Another quiet moment passed between the two before the blond boy turned on his heels and headed down the path towards Hau'oli City. Still in mild shock Yamaguchi sat dumbfounded. He wanted to call after the boy but his voice didn't seem to want to work right. With bated breath, Yamaguchi watched the boy disappear into the sunset.

It was the next day and Yamaguchi found himself returning to Hau'oli City's Pokemon Center. He had arrived there the night before just after dark. He had passed off his fainted Popplio to Nurse Joy who scolded him for allowing Popplio to stay fainted for so long. Yamaguchi hadn't the courage to tell her of his bullies, choosing to stay quiet as she told him off. She had than sent him away saying that his Popplio would be back to full health in the morning.

Yamaguchi had decided to head out in the morning to pick up one of Popplio's favorite treats, a fresh soft malasada. Though Yamaguchi had practically cried himself to sleep the night before, he found himself in slightly better spirits this morning. It was another sunny day on Melemele Island and Yamaguchi was anxious to see how Popplio was doing.

As he entered the Pokemon center he unconsciously grabbed the straps of his backpack and hunched his shoulders. If someone asked him why he would do such a thing he'd tell them because he didn't want to accidentally bump into someone. The reality was that he didn't want to draw attention to himself in case another aggressive trainer targets him as their next prey. To Yamaguchi's pleasure, the lobby of the Pokemon Center was none too crowded. Perhaps too early for most trainers to be up. Or maybe most trainers were already on the road onto their next adventure. Whatever the reason, Yamaguchi was grateful for the lack of people.

Ever so meekly Yamaguchi stepped into the Pokemon Center. Not wanting to disrupt the few people that did decorate the lobby, Yamaguchi delicately walked to the front counter. He looked to the floor, doing his best to avoid eye contact. In his diligence to stay unnoticed, he failed in noticing the person in front of him. Before he knew it he found himself bumping into something tall and soft.

"Ouch!" the object grumbled.

Yamaguchi felt a shiver run down his spine as he looked up to see who the individual might be. His eyes widened and his fear subsided upon seeing the blond boy from yesterday. The blond boy looked down on Yamaguchi in milde annoyance.

"It's you!" Yamaguchi gasped, pointing to the boy.

The boy's annoyance changed to confusion as he carried on staring at Yamaguchi.

"Yesterday! On route 2," Yamaguchi clumsily explained as panic began to build in the pit of his stomach. "Y-you chased off those bullies who were tormenting me…" he mumbled as he fiddled his fingers anxiously.

The blond boy looked long and hard at Yamaguchi, his expression still held a hint of surprise. "I don't remember you being there…" the boy shrugged.

Yamaguchi's anxiety was overtook by pure shock. Had his saviour really forgotten about him or was he just fibbing? Yamaguchi couldn't tell. He quickly shook off his shock as the boys looked to him in concern.

"W-well, I wanted to thank you anyways," Yamaguchi carried on shyly. "You really helped me out."

"Not a problem," The boy shrugged, seeming none too interested in the subject.

"M-My name is Yamaguchi…" Yamaguchi introduced himself as he fidgeted awkwardly. "Yamaguchi Tadashi," he clarified as his small hands fiddled with this backpack strap. He glanced up to the boy in hope of a reply.

"Tsukishima Kei," they boy flatly replied as he looked down at Yamaguchi. Yamaguchi could not tell if Tsukishima was even interested in the pleasantries. Regardless, Yamaguchi wanted to do his best to get to know his saviour.

"S-So, are you new to the Island Trials?" Yamaguchi awkwardly carried on.

"Yep, I just started a few days ago," Tsukishima replied with a shrug.

Yamaguchi perked up. He had thought the boy to be older than him but if he had just started then he must be the same age as himself. "That must mean you're 10 years old, too!" Yamaguchi unintentionally blurted out. He immediately put his hands to his mouth looking to Tsukishima with a sorry glance.

"That's when people start their trials around here, isn't it?" Tsukishima replied, not seeming bothered by Yamaguchi's awkward behaviour.

"Right," Yamaguchi smiled brightly as his nerves began to fade. "So are you from Melemele Island or do you come from somewhere else? I grew up on Poni Island, myself. I wasn't born there though. I was born on Akala Island but when I was still really young my family moved to Poni Island. It's my first time exploring Melemele Island all alone like this though," Yamaguchi rambled as his excitement at possibly making a new friend began to grow. He became aware of his rambling and smiled sheepishly at Tsukishima.

Tsukishima seemed a bit surprised by Yamaguchi's sudden bout of confidence but wasn't put off by it. "I actually just moved to Alola not too long ago," Tsukishima admitted, seeming lost at all the places Yamaguchi had rambled off about.

"You're not from Alola?" Yamaguchi gasped, his interest increasing twofold.

"No, my family moved here from Unova a few weeks ago," Tsukishima explained with a small smile. He seemed to enjoy the attention he was receiving from Yamaguchi.

"Unova! That's amazing!" Yamaguchi gasped, his voice high and breathy. "I've always wanted to visit Unova and see all the changing seasons!"

Tsukishima's smirk grew as he soaked up Yamaguchi's praise. "Yeah, it's a pretty great place. I even got my starter from there before I left to come here," Tsukishima practically puffed in pried as he said this.

"A Unova starter!" Yamaguchi gasped, the poor boy looked as if he was going to explode with amazement. "Which one!? Can I see it?!"

"Sure," Tsukishima shrugged though he still held a hint of a grin. He pulled a pokeball from his belt. He pushed the small white button at its center causing it to grow and with a flick of his wrist released the pokemon from within it.

A red light shot from the ball to the floor. Yamaguchi's eye grew with amazement as a green snake like pokemon with tiny arms and legs came into existence. The small green pokemon looked to Yamaguchi none too impressed.

"It's a Snivy!" Yamaguchi squealed in excitement as he bent down to be on level with Snivy. His large brown eyes grew as he took in a Snivy for the first time ever. The small green pokemon turned it's nose up at Yamaguchi but had a pompous smile that reminded Yamaguchi of Tsukishima.

"She warms up to new people slowly," Tsukishima shrugged, not really seeming sorry for Snivy's standoffish behaviour.

"She is so pretty! I've never seen a Snivy before. Wow she is so amazing," Yamaguchi rambled on, not really offended by Snivy's snooty behaviour. Side eyeing Yamaguchi, Snivy seemed to show a hint of interest from the slew compliments. Yamaguchi sent a wide grin to the pokemon causing Snivy to look away almost shily.

"She is a pretty strong Pokemon," Tsukishima ademited proudly.

"Do you have any other Pokemon?" Yamaguchi asked as he looked up to Tsukishima.

"No, not yet," Tsukishima said with a small frown.

"Me too," Yamaguchi sheepishly replied in hope to comfort his new friend.

"My older brother has a lot of Pokemon though," Tsukishima carried on, his pride beginning to well up once more.

"Wow, really!?" Yamaguchi gasped as he stood up once more. He looked to Tsukishima beckoning him to carry on.

"Yeah, he has an Emboar, Golbat, Scyther, Simipour, Zebstrika and a Gigalith!" Tsukishima listed off. As he did so the stars in Yamaguchi's eyes only grew. "That was the team he used in the Unova League last year," Tsukishima said as he glowed with pride.

"The Unova League! He competed in a League! Amazing!" Yamaguchi squealed in awe as he almost forgot to breath.

"Yeah, he made it to the top 8," Tsukishima shrugged, trying to play it off as if it was not a big deal. "He is in Kanto now taking on the Indigo League."

"Wow! That's so cool," Yamaguchi practically exploded in amazement. He'd never met anyone nor anyone's brother who competed in a League. Yamaguchi was down right starstruck.

"Yeah, I'm excited to go and see him compete at the end of the year like I did when he was in the Unova League," Tsukishima cooly sighed, though he still swelled with pride.

"I've always wanted to see an official League match!" Yamaguchi bounded where he stood as he spoke.

"One day I am going to be in an official League match just like my big brother," Tsukishima boasted as he puffed out his chest.

"Oh! Me too! I want to be in one too!" Yamaguchi nodded earnestly.

Just than the Pokemon Center bell chimed as an announcement filled the Lobby. "Yamaguchi Tadashi, your Popplio is ready for pick up."

"Oh! Thats me!" Yamaguchi perked up looking to the front desk. He then turned to face Tsukishima once more. "Wait here a moment! I want to thank you for helping me out yesterday! After I get Popplio I'll get you a drink from the cafe."

Tsukishima replied with a nod and a small shrug. Yamaguchi smiled widely at his new friend before turning to pick up his Popplio. His heart swelled with joy at meeting Tsukishima. Perhaps this would grow into the friendship Yamaguchi had always wanted.

I hope you all enjoyed what I would like to consider the prolog. I had a lot of fun picking out the starters for these two and I knew from the get go what starter Tsukki would have. I mean come on, Snivy screams Tsukki! I had to! Yama was a bit more difficult but after writing out the plot and digging deep I felt Popplio was the bet fit for Yama. Let me know what sort of starter you would have chosen in the comment section below.

I hope you are all enjoying the story so far. Do let me know if it gets boring or confusing. Your comments will definitely help guide me in later chapters in terms of pacing and such. That being said, I would really love to hear from you all so do leave a review/comment below and let me know what you think of good old chapter on. I am very excited to hear from you all.

I plan to have chapter 2 up next weekend. Should be on time no problem! I hope you are all ready to joy Yamaguchi and Tsukishima on the start of their pokemon journey next chapter. Where will they go? What will they see? Who will they meet? There is only one way to find out and that is to read on!

See you all next chapter!

Character in this chapter and their Pokemon:

Yamaguchi Tadashi - 10 years old

Starter - Popplio

Tsukishima Kei - 10 years old

Starter - Snivy