I've rewritten it and made some changes, so if you'd like; re-read it and re-review what you think!:D

"Ne, Mi-chi?"
"Hm?"
"Want to make a bet?"
"Sure"

I remember that day as the day I made the stupidest bet ever. My name is Mikan Yukihara Sakura. I was 16 years old when that bet was made. I used to live in Kyoto. My hair was brown, long and wavy and my eyes hazel brown. I loved cute things, but at that time, I didn't love my childhood best friend as much. He was the reason I was forced to live in that huge mansion.

A few months later after the bet were made; I sat in this living room, in a couch across from five guys I had just met a few minutes ago. I introduced myself nervously.
"Sorry for being rude, Sakura-san, but we were expecting you to be a boy." One of the boys told me. I could hear in his voice that he was uncertain, maybe worried if I would be offended."It's fine." I assured them. "I was expecting you to be girls."
"Yoichi was planning this from the beginning, wasn't he?" Another one suddenly asked. He saw me looking at him, and returned the gaze with a smile. "My name is Tsubasa Ando. It's nice to meet you." I nodded once with a smile. He was wearing a school uniform. He had blue hair, but hid it with a hat. A blue star tattoo under his left eye caught my attention before looking at his uniform. It was a black jacket and a white undershirt. The blue ribbon around his neck was untied. The jacket had blue lines at the sleeves and going down horizontally at the sides of the opening. The uniform jacket also has blue pants and brown shoes.
"I'm Kokoro Yome, but just call me Koko". This guy grinned at me. He had blond spiky hair and he had been grinning ever since I came in. Well, after he recovered from his shock when he saw me. He had normal clothes on.
"My name is Tobita Yuu." He smiled at me. He was also wearing the uniform, but it was a bit different. He was wearing a black long sleeved shirt with tied red bow, black boots and red plaid pants. He used glasses. He looked so formal, I got the feeling he was like a class president or something like that.
The next guy introduced himself as Kitsu. I giggled when he winked at me. I looked exactly like Koko, but his hair was a bit darker. I wondered if they were related. He was wearing a white t-shirt and blue shorts which went to his knees.
"And I'm Nogi Ruka." He was very charming, like a prince in fact. He had blonde hair that parts in the middle and his eyes were shining a very blue colour. He was smiling at me and seemed very calm about the whole situation. I smiled nervously. He was wearing a blue shirt and black breeches.
I stood up and bowed. "It's very nice to meet all of you."
We sat in the living room and got to know each other more. They all went to my new school. They wouldn't let me call them by their last names, so I called them by their first names or nicknames. Tsubasa was the oldest, so I called him Tsubasa-sempai. He was two years older than me, while the rest was a year older. Some of them would be in my classes, since the school divided two and two years together by subjects. Later that night, I felt tired and they bid me goodnight. Ruka showed me to my room and told me where the bathroom and kitchen was before wishing me sweet dreams.
"Oh, and my room is just across yours, so feel free to come and ask me if you need anything."
"Thank you, Ruka."
I went into my room and found my toiletry and walked towards the bathroom. I stopped when I saw a door and stared at it for a little while. I didn't recognize the name on the door.
"That's our friend." I looked at Tsubasa who was coming down the hallway as well. "You'll meet him tomorrow. He's working right now." I just nodded. He stopped beside me.
"I don't know if Ruka told you, but there's no lock on our bathroom door. I'm going to buy one tomorrow."
"Thanks." I smiled.
"Well, good night, Mikan-chan." He started walking down the hallway again. I stood there until he had turned the corner and then went to the bathroom. It smelled like dude. No surprise. I placed the busy-sign outside the door and took a quick shower before putting on a green singlet and black shorts. I don't like night gowns. I went to my room again and into bed. It was really soft and comfortable, so I soon dozed off.

And that... was the beginning of my sweet nightmare.