Zoro blinked at the weird request.

"You want me to help you catch a ghost?" he asked incrediously, thinking this must be a prank. But Luffy nodded, face as serious as it had ever been.

"I'm being haunted by a big jerk of a ghost," Luffy growled. It was then Zoro noticed his skinned knee, which was still bleeding.

"Did you trip or something? That might get infected," Zoro pointed out. Luffy didn't even look.

"That was the ghost. It tripped me while I was coming over here," Luffy explained shortly, crossing his arms. Zoro resisted the urge to roll his eyes.

"Yeah, I'm sure it was the ghost," he said sarcastically, but the sarcasm was lost on the black-haired teen.

"So, you'll help me?" Luffy asked hopefully. Even though Zoro didn't believe it one bit, he sighed in defeat.

"What do I have to do?" he asked reluctantly. Luffy's eyes glittered triumphantly.

"First I have to get you to believe me." Zoro looked up at his friend in surprise.

"Wha-"

"I know you don't believe me. You don't have to pretend you do," Luffy said, waving a hand absently. Zoro gulped slightly and looked at the floor again.

"Well, I'm pretty sure ghosts weren't real the last time I checked..." he muttered. Luffy huffed.

"I know it's a ghost. Just wait."