Disclaimer: I don't own Digimon. Kou is mine, though. At least, I think he is…

Anywho, now that that's out of the way, here's my story! This will be a grand crossover of all 5 seasons of Digimon, but will go through each of their adventures first. As the title says, I'm starting with Tamers, and I have a good reason for it, too. Why? Won't be clear till later! So read!

Summary: Found on the doorstep of Takahiro and Mei Matsuki, Kouki "Kou" Matsuki has lived his entire life as the brother of Takato, the couple's real son. So far, he has lived a normal life, despite his unknown past. The definition of "normal," however, is about to change for Kou, Takato, and all their friends. And it all starts with a red dinosaur…

Alpha-Gain-Force: The Digimon Tamers

Shinjuku, Matsuki Bakery

"Takato, Kou, hurry up!" yelled Mei Matsuki from down the stairs.

"We're hurrying, Mom!" Takato yelled back as he searched frantically for his Digimon Cards.

"Come on, Takato, get your cards already, we gotta go if we want time to play Kazu!" said Kou. Kou was wearing a dark blue t-shirt with a silver stripe across the chest, khaki shorts, and tennis shoes. He was about Takato's height, and he had brown hair and blue eyes.

"I'm looking!" said Takato as he pushed a pair of goggles off his desk. "There they are!" he exclaimed.

"Good, now let's get out of here!" said Kou.

"Fine, fine!" said Takato. After walking down to the door, Takato and Kou turned around to say goodbye to Mei. "We're leaving, Mom!"

"Okay!" Mei called back to them. "Be careful!"

"We will!" said Kou. "So, the park, as usual?" he asked.

"Yep," said Takato. "And I'm gonna beat Kazu today!"

Shinjuku, Park

"I can't believe I lost again!" said Takato.

"Well, I can!" said Kazu proudly.

"Me too," said Kou.

"Hey you're supposed to be on my side!" said Takato. "Besides, all my cards were different for some reason!"

"That's because you took my deck, bro." said Kou, holding out Takato's own deck. "About halfway through my game with Kenta, we noticed I had your deck. Way too many Agumon related things to be mine."

"Oh…oops," said Takato.

"Well, knowing Kou, he was probably the one that got them mixed up," said Kenta.

"Hey!" said Kou, "Just because I accidentally mixed up our clothes...and homework..."

"And toothbrushes," added Takato, shuddering. This was one of Kou's particularly bad habits.

"…and toothbrushes," repeated Kou, "doesn't mean I was the one who mixed up our decks too!"

"Yeah, sure," said Takato as he checked the time on his card reader. "Ah!! We gotta go!" Kazu, Kenta, and Kou rushed out, but Takato paused a second and took another look at the card reader in his hands. "Oh, and Kou? I think this is YOUR card reader."

"Oh," said Kou with an embarrassed look on his face. "Sorry about that!" He reached in his pocket and found Takato's. "Here's yours."

"Thanks," Takato said, taking it. "Now let's GO!!!"

Shinjuku, School

"Well, you three are lucky," said Ms. Nami Asaji, "the bell hasn't rung yet. I guess miracles DO happen, after all. But…where's Takato?"

"He's right…" began Kou as he looked around. Strangely enough, Takato wasn't there. "Well, what do know, he's not here."

"That's weird," said Kazu, "Chumley was right behind us when we left the park."

"That is weird," agreed Kenta.

"Well, class is starting, so sit down," ordered Ms. Asaji.

"This is weird, Takato was right behind us," Kou thought.

"I'M HERE MS. ASAJI!!!" came a cry from down the hall. "DON'T COUNT ME LATE!!!"

"There he is," thought Kou, relieved.

"I'm sorry, Takato, but you know the rules," said Ms. Asaji. "You wait outside. And I want an apology this afternoon." Takato sighed.

"Yes, Ms. Asaji…" Takato said. When Ms. Asaji turned around, Takato quietly pulled out his notepad and began to draw.

"That again, huh?" thought Kou. "Hope he comes up with a name soon. I'm dying to see how that 'mon turns out. Oh well, better pay attention before Ms. Asaji bites my head off."

After School…

"Woof! So your better hurry up and write that apology!" said Jeri through her sock puppet.

"Er, ok, Jeri…" Takato said, blushing. Jeri didn't notice.

"Good!" the puppet said. After letting out one final "woof," Jeri left, giggling. Soon after, Kou came in the classroom.

"Hey, bro, how's the 'mon coming?" asked Kou.

"I'm writing an apology, Kou," said Takato.

"Sure you are," said Kou sarcastically. "But you worked on the dino in the hall right? Got a name yet?"

"Nah, but he's got some attacks," said Takato.

"What are they!?!?" asked Kou excitedly.

"I'll tell you when we get home," said Takato, grinning. "By the way, I'm gonna be here a while. Would you go home and tell mom I'm at Kazu's or something? She'll be angry if she finds out we were late again."

"YOU were late," said Kou. "I made it here on time. And that reminds me, where were you anyway?"

"Oh, I, uh…" Takato hesitated a moment. "I, um, dropped my cards on the way out. I had to pick them up." Kou looked doubtful, but didn't say anything.

"Ok," said Kou. "I'll cover for you at home. Want me to get your cards on the way home?"

"No, I'll get them," responded Takato.

"You sure?" said Kou. "I've gotta get mine anyway."

"No, you just make sure you have yours and NO ONE else's," said Takato. "I don't want to get Kazu or Kenta mixed up in this, uh…mix-up…thing…of yours."

"Fine, fine," said Kou. "See you at home!" As Kou walked to the door, he paused a moment. "One more question Takato. The girl that walked out of here earlier…was it Jeri?"

"SH-SHUT UP!" yelled Takato as he jumped out of his seat. Kou just laughed and ran away.

Shinjuku, Matsuki Bakery

Kou was worried. He had gotten back home nearly 3 hours ago, and Takato hadn't arrived yet.

"Hope he's ok…" thought Kou. "There's no way even he could take THAT long to write an apology."

"Kou, dinner's ready!" called Takahiro from downstairs. "You better hurry before your mother kills us both!"

Kou smiled. He knew that the Matsukis were not his real parents, and they knew he knew, but they always showed him as much love as they did Takato. Even if it wasn't the one he was born into, Kou was quite satisfied with his family.

"Though I'd be more satisfied if there was one more of us present… oh, well," thought Kou as he headed down the stairs.

At dinner…

"So, where is Takato again?" asked Mei. "He didn't have to write another apology for Ms. Asaji, did he?"

"No, mom," said Kou. "I already told you, he went to Kazu's place for a rematch. I sorta… switched our decks this morning, so he lost." Mei looked doubtful. "Really, mom! If he was late, I would have been too!"

"He's got a point, Mei," said Takahiro. "I doubt Kou would leave Takato behind if he was late."

"Thanks, Dad," thought Kou.

"But I'm worried about Takato," Takahiro continued, "I'm going to call Kazu's parents and see if he's still there."

"Un-thanks, Dad," thought Kou as he raced for the phone before Takahiro could reach it. "Don't worry about it, I'll call them!"

"Umm…ok, Kou," said Takahiro.

"Phew, that was close," thought Kou. "Now let's see, what was Kazu's number again? Oh, yeah, that's it."

At Kazu's…

RIIING!!! RIIING!!!

"Answer the phone Kazu!" called Kazu's dad.

"Fine!" yelled Kazu as he picked up the phone. "Hello?"

Umm…hello?

"Is that you, Kou?"

This is Kou, I was wondering if Takato was still there?

"Hey, Buddy, Chumley never came over."

He just left? Ok, thank you!

"What the…"

Back with Kou…

"Wow, I owe Kazu an apology tomorrow for that one," thought Kou. "Takato better hurry up, now, though."

"Well?" questioned Mei, "Where is he?"

"He's on his way back," said Kou. Before he could sit down to finish eating, however, there was a knock at the door. "That's probably him now. I'll go let him in."

When Kou opened the door, he was startled by what he saw. Takato was filthy, and there was a large tear down his pant leg. But before he could comment on this, Takato dragged him outside.

"You HAVE to see this!" exclaimed Takato as he lead Kou behind the bakery. "It's really him, Kou, it's Guilmon!"

"What the?" thought Kou, confused. "Oh, he must have named that Digimon he was drawing. But that doesn't explain the ripped clothes or why he's so filthy." Kou sighed. "Can't you show me that drawing inside Takato? We're in the middle of dinn…" Kou froze. "No. Way."

Kou was standing face to face with a crimson dinosaur. Face to face with Guilmon.

Well, there's the first chapter. Took me quite a while to do with my compy failing and my Chemistry teacher being evil, but it's done! Also, due to said Evil Chemistry Teacher (ECT) and my own tendency to be incredibly lazy, my updates will be incredibly random. I might have 3 in one week and then none in 3 weeks. So…yeah.

One more thing. During Kou's phone call to Kazu, Kazu called him Buddy. Buddy is to Kou as Chumley is to Takato. So you know.