We see a 12 Year-old boy in class sleeping at the very back of his class. He was wearing a black jacket with its edges having blue and purple flame designs, respectively. He had his jacket's hood over his head, so his face wasn't visible.

"SIN MIKADO! WAKE UP!" Yelled at the teacher when he wouldn't react to his inside voice.

The boy now known as Sin steered a little before sitting up, putting his hands in his jacket pockets, and looking up at the teacher.

"Is it lunch time already?" He asked with a yawn.

He stretched a little and removed the hood of his jacket, finally revealing his face. His eyes were two different colours, one purple and the other blue. He had a heterochromia, which was not weird to many, but he still got some backlash from them, especially from the boys, so not wanting any headaches, he made sure to always cover them at school.

The teacher's eyebrow twitched a little. "No, it's not... You are supposed to come here and pick a buddyfight pack, open it, and make a report on the cards you get from it."

"Oh, that," he said, digging through his pants pockets. "I already have a pack. Can I open this one instead of those?" He said pulling out a card pack

"Fine, just start; everyone is waiting for you." The teacher was a bit annoyed.

Sin shrugged and started opening his pack. Just before he pulled out his cards, a shout came.

"YES! a Dragon Knight, Maximilian," said a guy with a kitten on his shirt.

Sora shook his head and took out his cards from the pack before turning them over and looking at them.

"YES! Finally, my deck is complete. I finally got it!" Sora said, looking at cards.

Without even asking anything to the teacher, he picked up his new cards and jumped out of the window.

Buddy skill on!

Sin came by his teacher's window and said, "Sorry for leaving like this, sir, but I really need to go and finish my deck. Please, I will make it up for the missed classes."

Sin's buddy skill gave him black armour boots and gloves with purple energy coming from them; this gave him full control over his body while flying.

Sin then flew away, and everyone looked confused at what just happened, as this was the first time Sora acted so out of character, and also this was his first time ever using his buddy skill.

"I never saw him like that," said his cousin Gao.

Gao then focused back on his pack and opened it. A light shone from it as a card flew out of the pack and room.

"All of a sudden, now you have nothing to say?" Said the light as it went out of the building.

Gao ran behind it and soon came down as the light transformed into a dragon.

"Hey, my name is Gao Mikado," said Gao, raising his hand for a handshake.

"What are you trying to pull now?" Said the dragon.

"Well, we are supposed to be buddies, right? So I was just introducing myself."

"Buddies with you? You still think dragon knights are better than dragons."

"Huh? What do you mean?"

Suddenly the wind picked up, and a gust of wind hit Gao, making his hat almost fly from his head.

"Sorry to drop on you like this," said a boy with blue hair and red eyes wearing a vest and uniform much like a police uniform.

"Sorry about your hat, kid," said a green-colored dragon with a knife over his head.

"Tasuku Ryuenji"

"Jackknife dragon"

"I am here on official business," said Tasuku, pulling out a deck case. "This is for you, Gao Mikado."

"Wow! Thanks, man," Gao said, taking the case.

Tasuku nodded, "With this, you can fight anywhere and anytime with anyone."

"As long as they are not a criminal fighter or something along those lines," said Jack.

Both Jake and Tasuku turned and got ready to leave but stopped when they heard a voice from above.

"Well, well, if it isn't the Boy Wonder himself." Came a voice from above them.

Everyone looked up at the sky to see Sin floating in the air.

"Hey! Sin, look, I got a buddy!"

"I can see that, Gao," he said, landing.

"Nice to meet you, Tasuku-san. I am Sin Mikado Gao's cousin."

"Nice to meet you too, Sin. Have we met somewhere before? I have a feeling I have seen you somewhere," said Tasuku as he shook his hand.

Sin pulled him a bit closer and whispered something in Ryuenji's ear before backing off, making Tasuku stumble back in shock.

"Sin?... You are that Sin?"

"Sin Mikado is at your service, my dear friend," said Sin, doing a mock bow.

"Uhhh, how do you two know each other?" Asked Gao

"It's a long story, anyway. Say, Ryu, do you want to have a fight?" Sin said, "Last I remember, the score was... 3/4."

"You still remember?"

"Unfortunately or fortunately, I never forget anything at all."

"Tasuku... You still have school and classes to take; you can't fight him right now," said Jack.

"Oh, come on! Missing one day won't change anything!" Whined Sin, looking at Jack.

"No, he needs to go to school."

"Jack, it won't take long. I wouldn't mind either," said Tasuku.

"TO THE AIBO BUDDYFIGHT STAGE!" yelled Sin, flying away.

"Wait for me!' Tasuku said flying after him.

Jack sighed but followed soon after.

Gao and the others just stood there in shock.

"What just happened?... My cousin knows The Tasuku Ryuenji," Gao said in shock.

"Hey! They said they are going to fight in Aibo Buddyfight Stadium!" Yelled someone from the crowd.

Everyone heard that and ran towards the stadium, not listening to the teachers who were trying to keep them under control.