Private Horitsuba Academy : Survival Adventure?!

This is my fanfiction based from Private Horitsuba Academy manga. Well, this the story when all 10th grade students are going for School Trip, but the truth is... Survival Adventure, who made by Yuuko!
CHAPTER 1 YUUKO'S SURVIVAL ADVENTURE START!
"Hhhhhh..." sighed Syaoran. "I had a bad feeling about this school trip."
"What's that, Syaoran?" asked Watanuki.
"Something that feel crazy who made by the principal."
"Yuuko-san? What's matter about her? Are that because Yuuko got the VIP bus with all facilities along?"
"No, no." said Syaoran. "It's only feeling. Abandon that."
"Whatever. Just try to feel comfortable and happy in this school trip."
"What's matter, Syaoran-kun?" asked Sakura, who have been worried about Syaoran.
"No, it's nothing. There isn't matter."
"But, you sighed. I think you are get a problem so you sighed."
"Yes, but it's nothing."
"Oohh..."
****
"Welcome, students!" shouted Yuuko. "We'll have a nice trip in this trip. We'll attend... Survival Adventure!"
"What?!" shouted all students.
"As I thought." said Syaoran. "It's the matter."
"So, survival adventure is the matter you feel?!" snapped Watanuki. "How c'mon, you must tell it that's not true."
"Well, I already made up the teams. No protest."
"Why?" asked Watanuki.
"It's my rules. Remember? Syaoran, tell it."
"Yes. Private Horitsuba Academy, Chapter 5, Clause 17. There is no protest about the decision made by the principal."
"Smart, Syaoran. I will add a point for your literature score."
"Thank you, principal."
"Egh?! What's rule that?"
"You haven't known, Watanuki?" said Syaoron. "That rule always told by the principal every decision she made."
"No... I, I..."
"TING TONG! Stop talking, I will explain the teams." stopped Yuuko.
And then the teams are :
Team Red - Watanuki, Tomoyo, Himawari, Subaru
Team Blue - Sakura, Syaoran, Kamui, Miyuki
Team Yellow - Syaoron, Larg, Soel, Doumeki
and another teams that I will not explain...
"And then, the first task you all will do is... Courage Test Adventure!"
"The task you do will find your team's color flag. But, remember, this is Courage Test!" said Kurogane.
TO BE CONTINUED...