Author's note: Okay, well, as it says in our bio, Mika and I are now back in school. This will delay our stories a bit. So if you're waiting, I'm really sorry but it's hard to find some spare time. Well, here's chapter 4.

Disclaimer: I don't own anything Rurouni Kenshin or Yu-gi-oh.

Chapter 4

Yugi woke up the next morning alone. He was about to call for Grandpa but soon remembered that he was no longer here. Yugi sighed and started searching the house for something to eat. "I'm starving," Yugi said to nobody in particular. "Now, if I was some food, where would I be?" Yugi came upon the room that looked the most like a kitchen. He opened the cabinets in search of some food. To his surprise he found a very small amount of food. "How does Kenshin live?" Yugi asked himself after remembering how skinny Kenshin was. "Well, I'll just take one then. Kenshin looks like he'll need more than me." Yugi reached in a grabbed one little rice ball and munched on it while he wandered around the house. The boy managed to come across and empty room. It was much smaller than a regular dojo but it served its purpose. Toward the back of the room were a few bokkens and shinai on the wall. 'Well, Yami,' Yugi began, 'looks like it's your lucky day. You get to learn the way of the sword as well.'

'What? Why do I have to learn it?'

'What if something ever happened to me and you would be all that was left? You'd never be able survive without the right training.'

'But, I still…'

'No complaining! Now come on out here and start practicing. I'll be teaching you from the things that Soku-sensei taught me,' though hesitant, Yami came out and began his training.

"Just one more installation here and…" Kaiba said as his finger blurred across the keyboard. Kaiba looked up with a big grin upon his face. "…It's ready." Upon the screen were many complicated words that only a few people would be able to comprehend. Then, from behind him, Kaiba heard a small voice.

"Seto," Mokuba asked his big brother, "are you sure you want to do this?"

"Mokuba," Kaiba responded, "it's the only way to keep me from thinking that there actually is such nonsense as ancient magic. I doing this to prove something to myself, now will you go fire it up?"

Mokuba nodded and turned to the computer. Kaiba entered a solitary room and nodded his head to show that he was ready. "Okay Seto, on the count of three I'm going to pull the lever." Mokuba blurted into the microphone. "One, two… THREE!" Then, on three, he pulled on the lever that should have activated something in the room that Kaiba was in. It didn't do anything at first but soon a black shadow-like substance came up from behind Kaiba. What it did to Yugi, it now did to Kaiba. Kaiba was no longer sure if he wished to do this. He shouted to his brother to turn it off, but there was no response. The darkness didn't fade so either Mokuba didn't hear or it was too late.

Saitou Hajime, leader of the third Shinsengumi unit, sat at his post wishing for other things to do. Right now, he was just watching the grounds for any patriots, mainly Battousai. He soon heard a sound not that far off and he wasn't the only one that heard it either. The Shinsengumi were trained for these kinds of things so of course that it would not get past all of them but one. Saitou stood with his hand up telling everyone to be at ease while he went to go check it out. He walked further away from the clearing to only find a person lying in a patch of grass. The thing that bugged him was what the kid was wearing. It was big, white, and looked like it didn't belong here. From what he could tell from this boy was that he was not from around here.

Kaiba grunted as he sat up and instantly his hand shot to his head. It was throbbing and his vision wasn't doing any better, thus giving him a heard time focusing on the figure in front of him. Kaiba rubbed his eyes to fix his vision and as they cleared he was able to see that the figure happened to be a man. The man looked down at Kaiba with a glare upon his face. "Wh-who are you?" Kaiba asked the man, fear filled his voice.

"It's not your place to ask that," Saitou said as his hand drifted down to his sword. He didn't know what to think of this boy, or whether or not to trust him. He wore such strange clothing that he couldn't tell what side of the war he was on. Kaiba saw the man's hand resting on the hilt of his sword. After processing this through his mind he scrambled backward and stood up as fast as possible. "What is it that you're doing on Shinsengumi grounds?"

"I-I," Kaiba began but soon stopped himself. Why was he afraid of this man? Was it because of his sword? No, it couldn't be that. He was so use to looking at weapons so he could design the duel monsters. Was it how this guy looked? No, he's seen many more frightening looking men than this one. This man also looked a little confused. There was something about this man that was scaring Kaiba, but what was it?

"Well, spill it out!" Saitou barked, annoyed of waiting. This kid was confusing him. What was he pondering about?

Kaiba flinched, "What's a Shinsengumi?" he finally asked as he gathered his courage.

This confused Saitou even more. Who was this kid? Saitou has never met anyone that has never heard of the Shinsengumi. "You're not from around here are you?" Kaiba quickly shook his head in answer. "Then come with me," Saitou turned and walked the way he came from. Thinking it wise to do what this man says, Kaiba followed. He soon found himself in a clearing being stared at by a ton of man that all wore the same outfit. They came to a small hut and Saitou turned to open the door.

"Saitou-san," came the greeting of one man as they entered the building. At least now Kaiba now knew his name.

Saitou nodded and spoke, "I'll need a spare outfit." With that said the other man sprinted off not even giving Kaiba a glance. Saitou now turned on Kaiba who flinched in return. "You now know my name, what's yours?"

"Seto Kaiba, um, Saitou," Kaiba said starting to get use to this guy, but that didn't last.

Saitou glared down at Kaiba. He gulped as Saitou growled, "That's Saitou-san to you! I'm in lead of this group and if you wish to live, you'll obey what I say!"

"Yes, sir!" Kaiba said uneasily with a salute to Saitou. He knew this man could cause some heavy damage, so he chose to just stay on his good side. The man who had sprinted away had now returned. He handed Saitou the clothing and Saitou nodded his head in thanks. Saitou then jammed the clothing into Kaiba's arms. "You don't really expect me to wear this do you? After all, what I'm wearing is much better and…" Kaiba stopped after getting another death glare and soon ran off to change.

A few minuets later and Kaiba re-appeared in the same outfit as everyone else wore. "Now come, I must speak with you," Saitou said as he now left the building. Kaiba followed again, this time to a deserted place with no one around. "You are now part of the third Shinsengumi unit, I must learn what you are strongest in."

"Well, I, um, design holographs," Kaiba said with nothing else he could think up.

"What?" Saitou asked but shook it off. "Will this strength of yours be enough to protect you from my sword?" Kaiba's eyes widened in response making Saitou take it as a no. He then continued, "Well, what can you do to protect yourself from my sword?"

Kaiba thought about that for a while then came up with the only answer he could, "Run and hide."

Saitou rubbed his temples in thought. Then it hit him, the run and hide answer that Kaiba gave him. That's it! "How would you like to be the spy for the third Shinsengumi unit?"

"A spy? How will I ever protect myself if I get caught?"

"I'm sure that a few of my units can teach you a thing or two about the sword. Until you can get a hold of a katana, you can hold onto my wakizashi," Saitou said as he pulled out the smaller of the two swords at this waist. He handed it to Kaiba who soon put it at his own waist. It felt kind of good to have this kind of power at hand. "You should meet the others in the unit as well. Don't ask them to teach you the way of the sword; I'll handle that much. Welcome to the Shinsengumi spy Kaiba-kun," Saitou said as he went back to the group to keep watch.

Author's note: Well, Kaiba has now joined in on the story. I thought I'd just make it this way because Yugi's rival is Kaiba and Kenshin's rival is Saitou. Now Yugi's with Kenshin and Kaiba is with Saitou. What do you think? Well, that's chapter four for you. I hope you enjoyed it. Sorry if the story is delayed and be sure to read and review.