"Somebody tell me why I'm walking through this freaking hot jungle during my vacation." Yusuke said as he brushes a tree branch out of his way.
"We told you a thousand times why already." Kuro said.
"How did Koenma get us to do this?" Kuwabarra asked this time.
"Baka, you agree to do this on your own." Hiei was getting annoy with the questions.

Flashback-3 days ago The five Spirit Detectives are in King Yama's chamber waiting to receive a special and important mission. The Spirit Detectives were there on the request of a special person. Koenma had given the detectives their choice of accepting a mission or not and they accepted. It was summer break and they were bored. They had not has any missions or fights in a while. The mission is greatly important and must be kept a secret; the detectives were not to know what the mission is unless they accept. Even Koenma does not know what it is and he was dying to know along with Botan.

King Yama starts to tell the team about their mission. "You are to travel to Hild's castle in the depth of Makai and retrieve two important documents. You also must bring both documents back here safely and no demons must get their hands on them for even a second. A portal will be open tomorrow afternoon by my son and the journey will take about a week. It must not be any longer." "If I may ask, what do these two documents contain?" Kurama asked respectfully.
"I do not have the authorities to answer that question. Nevertheless your teams will be accompanied by a girl and she will guide you through your journey."

The fives left after that and went to prepare for their trip. They would have stayed longer but King Yama refuse to give them any more information about their mission, to this the brains of the team, aka Kurama. Hiei, and Kuro, was having doubt and worries about this mission. Therefore, with nothing else they can do about the knowledge of their mission, they met up at Koenma's the next afternoon and bid Botan and Koenma bye.
"All right guys, now that you're ready to go, have a safe trip and come back soon." Botan bid them good luck. "Are you sure you can't tell us about this mission even one bit." She put on a pleasing face. "Please just a little detail will do."

"I'm not falling for that face again." Said Yusuke, well it is not like he know much anyway.

"Wait, King Yama said a girl would be aiding us in this mission, did he not?" Kurama asked. His mind had been on why King Yama was not allow to tell them what the two documents is and who had requested them to go on this mission.

"You will meet her in Makai." Koenma answered. "Please hurry and leave, I must get back to work. Do come back safely, I would hate to waste time training another Spirit Detectives team."

"Gee… Koenma, nice to know you appreciates us so much." Yusuke said sarcastically. He begins to walk through the portal and the rest of the team follow.

They comes out into a what seem to be a normal forest to human eyes, but if you're a demon or have strong spirit power you would right away sense the evil and bloodthirsty in the air.

"Home fells… good." Hiei finally spoke, for the first time since this thing has start, from the tree he is in. It had been quite sometime since the last time Hiei was in Makai.

"I don't see how anyone would call this place home." Kuwabarra said. "I wonder where the girl we're supposed to meet is." He looks around for a girl.

"Kuwabarra, you're not planning to cheat on Yukina, are you?" Yusuke has a smirk on his face and mischief in his eyes.

Hiei had heard Yusuke and the thought of his innocent little sister being with an oaf like Kuwabarra or anyone at all, begin to make his eye begin to twitch.

"No of course not, I was just worry that the girl might be in danger and as a man I must protect a girl in needs. Anyway, I would never betray my beloved Yukina. I love her and only her. You know she has already confessed her love to me during the Dark Tournament." Kuwabarra kept blabbering on about Yukina while he was oblivious to the danger behind him.

"Doesn't this guy know when to shut up?" Kuro asked.

Kurama answer, "appearance not."

Behind Kuwabarra, Hiei is currently trying to slice him to pieces. Saying that Hiei is piss off at Kuwabarra for talking Yukina was just an understatement. However, luckily for Kuwabarra, Kurama and Kuro is trying to keep the bloodshed in the team to a minimum. The two thieves were doing their best to hold Hiei back while talking him out of it.

"Hiei let talk…" Before Kuro finish his sentence, a light shot down from the not too far from where they are.

"Ahhhh!" A scream come right after the light had disappear.

"What was that?" Kuwabarra asked loudly.

"Come on." Yusuke burst off running toward the scream. It was close so they did not have to run far, the closer they get the slower they went. Hiding themselves behind trees and masking their power, they watch the site.

"Ow." A girl voice whine. The girl has blond hair in odango style and her straight hair reaches to the ground. "That really hurt." She starts to yell at the sky. "You didn't have to land me so far up in the sky you know!" She stood up and brushes her dress before turning to where the detectives are hiding. "Hello, my name is Serena and I'll be helping you on your mission." She smiles as she held out her hand toward them.