Disclaimer: I don't own One Piece

The Strawhats and the Heart Pirates had just met up. Luffy was excited as ever that he was seeing a good friend again. Chopper was excited to meet another talking animal as well as a doctor and a captain to boot. Franky was excited to see a submarine and was trying to incorporate the design into his little sub. Everyone was fine with meeting each other. All except one person.

"He can't board the sub," Trafalgar said. The Straw hats froze in place. They were about to meet up with Law to help cure a disease that was plaguing the island they were docked at. Law had been at the harbor, investigating the Grey Plague. Named after the depression it left behind in its victim as well as the grey swallow skin it gave them. Law had long figured out that the disease was caused by a parasite, but he couldn't find it. So, when the Straw Hats had appeared he offered Chopper the chance to help him, which Chopper was more than excited to accept.

The entire crew was going to help look on the island to find where the parasite was coming from. They were going to have a meeting on the sub when Law made the demand.

"What?" Nami asked.

"You heard me, he can't board. Someone has to watch your ship," Law said.

"Oh! Heehee, that's what you meant! Ok Zoro, you have to stay here and watch the ship, ok?" Luffy said. Zoro yawned and collapsed onto the deck, already asleep.

"Well, I guess that actually works out. The stupid marimo would probably get lost anyway," Sanji mumbled. This woke the swordsman up immediately and he was about to attack when Nami punched him.

"Not now!" she yelled, "Come on!" Everyone walked into the sub and right before Law closed the door, Zoro could have sworn the man glared at him.

"I don't think that captain likes me," Zoro said when the crew was back on the Thousand Sunny.

"What? Why would you say that?" Luffy asked. He was the only one though, all of the other crew members agreed with him. After Robin had suggested that one person should watch both ships and Sanji was 'chosen'. He was, of course, more than happy to do anything for his 'ROBIN-SWAN!'. That meant Zoro was helping look for the cause of the parasite. They were split into two teams, each following one doctor. Zoro was in Law's group along with Nami, Usopp and Brook.

"That's just a regular beetle, are you sure your brain is even working?"

"Three swords, that's an interesting choice for a swordsman. I'd rather have more skill than more swords but whatever suits you."

"I see why you're the only person on the crew without a real job, other than swordsman of course."

These were just a few of the many scathing remarks Law had said. Each time Zoro went to attack but Nami and Usopp quickly stopped him. The last thing they needed was a fight with the Heart Pirates.

"You must have done something to make him not like you," Usopp said. This was pretty likely, Zoro was a hard person to like and Law didn't like many people.

"You should try to get along with him," Nami said. The 'or else' was assumed.

The second day, the crews were split up in two pair teams. Unfortunately, Law and Zoro were stuck together. Nami had pushed them together and whispered, "Get along with each other!". Now Zoro was stuck in this horribly awkward situation.

"So, what does this parasite look like again?" Zoro asked.

"Just leave it to me to find it, you concentrate on not dying," Law said. Zoro gripped his sword but took a deep breath and remembered Nami's threat about his debt.

"Look, what's you'r problem anyway?" Zoro asked, ever the blunt man. Law checked under a bush carefully before he got up and answered.

"I have no idea what you're talking about," he said.

"I know you have a problem with me! Just tell me what I did," Zoro said angrily.

"I don't have a problem with you," Law said, checking a tree by slowly circling it. He started to walk farther ahead. "I don't know what your obsession with me is by-" Law turned around and realized he wasn't talking to anyone. Unfortunately someone had forgotten to inform Law of Roronoa Zoro's lack of any directional sense.

Three hours later, a very angry Trafalgar Law was glaring down at a snoring Roronoa Zoro. Zoro finally snorted and blinked blearily at the pirate captain above him. It was night now and the teams must have all gotten back to the ships already, except for the two of them. Law could feel his head throbbing from the stupid man in front of him.

"Hey," Zoro said, yawning loudly, "where did you go off to? Geez, you should pay more attention to where you are."

"You're the one the got lost," Law said, trying to remain as calm as possible. Zoro stretched and got up.

"Did you find the parasite?" Zoro asked.

"No, I was busy looking for you," Law growled.

"Well," Zoro said, "maybe you shouldn't get lost then." Luckily for Zoro, at that moment Chopper and Shachi appeared to bring the two of them back to the ship. They slowly walked back, Chopper and Shachi walking far ahead of the two angry swordsmen.

"Completely idiotic man, really useless at everything, I don't even know why you're a pirate, completely stupid," Law mumbled to himself angrily. Complaining about how he hadn't even come close to finding the parasite again and it was all Roronoa Zoro's fault.

"Listen, what the hell is your problem?" Zoro asked.

"You. You are," Law said, keeping his voice calm, using a cold tone that even caused shivers in the two guides in front of them.

"That's not it, you haven't liked me since you saw me," Zoro said. Law didn't say a word and they lapsed into complete silence. "Fine, whatever, I don't really care," Zoro said.

"Was it hard?" Law finally said, after a few quiet minutes.

"What?"

"Training with Dr-Mihawk?" Law asked, "Was it hard?"

"Oh, well yeah. But he said I had potential," Zoro said. Zoro wondered what his two year training session with Mihawk had anything to do with anything.

"I see," Law said. After a few more minutes, he added, "so, he liked you then?" Zoro was confused about these questions. What did Law care about his relationship with Mihawk?

"We see each other as rivals," Zoro said, "that's it." He wanted to make sure he didn't give off the wrong impression. Law's cold aura seemed to dissipate and his fists unclenched.

"I see," Law said, "that's good. We better hurry back." With that, Law walked faster and soon caught up with their guides.

A few days later, the parasite was found and the cure made. The Straw Hats and Heart Pirates were going separate ways. There was a few hugs and tears, some Heart pirates sadly saying good bye to the girls on the Thousand Sunny. Sanji quickly kicked them into accepting the fact, and they waved good bye.

"So, did you and Law get on better terms?" Luffy asked.

"Who knows?" Zoro said.

"Do you know why he didn't like you?" Luffy asked, as the crew said their final goodbyes to the sinking sub.

Honestly, Zoro still didn't know what Law's problem was. Law had been acting like, well he had been acting like a jealous little boy. But that couldn't have been it. "He probably always acts like that," Zoro said.

"The talking bear thing said that he usually doesn't like people," Luffy said, gigging.

"I guess."

Heehee, I hope you like this chapter because I thought it was pretty cute. You guys who have been reviewing are totally awesome! Thank you so much! To anyone else you likes my story, please review! I would really appreciate it! The next chapter will have Bepo in it! Thanks again!