Fairy Tail's Saiyan

Natsu's power up?! Receive a gift from the gods!

Akane beach resort

Goku along with Natsu and the others had just arrived on the Akane beach front to start their three-month training for the grand magic games.

While Natsu, Erza and the others had started their individual training after Goku, Natsu, and Gray had a series of contests which Goku had won every time.

Goku then walked to a secluded area which was adorned with some sand and grass areas followed by a couple of palm trees.

"Oh yeah! This spot is perfect."

Goku then took a deep breath as he then went super saiyan as he then closed his eyes.

After opening his eyes again his black pupils had refocused themselves only to see past enemies reappear before him.

Standing before him was Cell, Majin Buu, Turles, Cooler, Android 13, Frieza but standing behind all of them was the one person who had pushed him to his limits in the tournament of power; Jiren.

Goku smirked as he assumed his fighting stance as all the mental villains rushed him.

Cell and Buu rushed him right away with a tag team assault of punches and kicks however Goku delivered a single strike to the mental cell and he disappeared into nothing.

Majin Buu then rushed Goku for his own attack only for Goku to do a Kiai with his right hand destroying the mental clone.

Turles,13, and cooler all rushed the saiyan only for Goku to teleport and take out all three mental fakes in an instant.

After they were disposed of only three were remaining ; Goku, Frieza, and Jiren.

Goku then powered up as he changed from super saiyan to super saiyan blue in an instant.

Outside goku's mind

Natsu, after doing some of his own training but then decided to go for a walk until he saw Goku doing some kicks and punches to the air with his eyes closed and his hair, was blue.

"Hey, Goku."

Goku who was still inside his own mind didn't hear natsu which caused the young fire dragon slayer to approach goku to try and get his attention.

"Hey,goku! Can you hear me?"

Not getting a response from him natsu approached him only to receive a solid punch to his face which sent him reeling back.

Sensing that his fist didn't connect with air that time goku opened his eyes as his hair went back to black as he opened his eyes.

"Oh hey natsu. Why are you on the ground?"

Natsu got right back up holding the side of his face.

"Don't 'hey' me goku! You sucker punched me!"

Goku looked at his fist then at natsu's swollen cheek before he smiled and rubbed his hand on the back of his head.

"Sorry bout that natsu I was training and didn't notice you."

Natsu got up and rubbed his cheek.

Goku then got an idea as a light bulb went off in his head.

"Hey natsu, how about we spar?"

This question caused the pink headed dragon slayer to have a look of excitement on his face as he had a toothy grin on his face.

"Sure Goku. I'm fired up now!"

"Yeah that's the spirit natsu."

Both guildmates assumed their signature fighting stances as they were about to clash.