Disclaimer: All things My hero Academia belong to the amazing Kohei Horikoshi

A/N: This is my first Fanfiction so please be nice. This is a story about my OC in the My Hero world. It will not perfectly match the animes story line but I hope you still enjoy the story.

"My first day at UA I'm almost too nervous to move." I thought as I got closer to the bus stop.

"Saki hey!" I heard a familiar voice yell from behind me, as I stood there waiting for the bus to arrive to take me to school. I turned around to see my best green haired, broccoli, friend since childhood... Izuku Midoriya.

"Izuku! How are you today?" I answered back to the boy who just ran to my side. I was so happy to see a face I recognized going to the same place as me.

"Nervous and excited. You?" asked the short green-haired boy.

"About the same. Hey the bus is coming." I said as I got my bus pass out of my bag.

At the entrance to UA

"We are finally here." I exclaimed in wonder, as I stopped to admire the beauty of the school.

"I forgot to ask but what class are you in?" Izuku asked me as he walked on inside the school barrier.

"1A. What about you?" I said, following him inside the gate.

"Same. I wonder what class Kacchan is in?" He replied as I caught up to him. Walking next to him as we entered the building full of other hopeful hero students.

"Class 1B... AHH here we are, 1A." I said to Izuku as we stopped outside of the classroom door. I got really excited and nervous as I opened the door to see a blue-haired teenager yelling at a blond-haired boy.

"Hi Katsuki/Kacchan." Me and Izuku said together in cheerful voices as we walked over to the blond-haired bully.

"WHAT DO YOU WANT YOU DAMM ex... " Katsuki yelled pausing as he looked at me standing beside his desk smiling at him brightly.

"Do you two know this delinquent? If you do, can you tell him to remove his feet from the desk?" the blue-haired one demanded.

"We do know him and don't worry Saki will take care of him for you." Izuku replied, answering the boy's question.

"Katsuki take your feet of the desk now, please, and if you don't you know what will happen." I tried to be as polite as humanly possible. But boy did this guy get on my nerves.

"Yes Saki." He said in a slightly scared tone as he quickly did as I had commanded.

"Hi Bakubro I'm back." Said a spikey red-haired boy. They started talking as the blue-haired one turned to talk to me and Izuku.

"Thank you for dealing with him. My name is Tenya Ida by the way. What are your names?" Ida said as we turned to face him.

"Saki Natsume." I said bowing as I did.

"Izuku Midoriya." Izuku also bowing as he gave his own name.

"You mean Deku you damn nerd." Katsuki butted in as soon as Izuku said his name.

"Did you say something Katsuki?" I asked smiling at him but he wasn't paying attention to me.

"Yah, I said he meant Deku instead of Izuku. Can't you hear or something?" Bakugo replied sarcastically.

"KATSUKI BAKUGO, did you call him Deku and a damn nerd again?" I kind of yelled at him. I don't remember the last time Katsuki spoke back to me like that. He is usually too afraid of my quirk to even think about it.

"Ye...yes I did I'm so...sorry I...Izuku." Bakugo stuttered as he apologized to the green-haired boy next to me. It always gave me great joy to see the cocky Pomeranian choke on his own words.

"SIT DOWN!" Yelled a deep voice from behind us. We all sat in our assigned seats. My seat was behind Izuku, who just so happened to be sitting behind Katsuki.

"My name is Aizawa and I am your homeroom teacher for this year. Now one by one come up in seating order and introduce yourself. Say your name, age, birthday and quirk." The sleepy teacher said as he walked off to the side to make room for the first student. When it was my turn, I walked up with a smile on my face.

"Hello, my name is Saki Natsume but you can call me Saki. I'm 15. My birthday is August 13th and my quirk is Time Manipulation. I can control time, pause it, fast forward it, meaning I can go into the future and into the past. However, if I stay in the past or future too long something bad happens in the present. I can stay in the past or future for about 15 minutes but I hope to elongate it to about 25 minutes." I said as Aizawa listened carefully to my quirk and how it works. I didn't reveal all of my quirk's capabilities, but I had my reasons.

"So, we need to be very careful with your quirk because if a villain got you, it could be a problem. Now anything else you would like to say Natsume?" Aizawa said in a slightly serious tone. This guy is too sharp and I will have to keep my guard up around him.

"Yes, just one other thing. If anyone has a problem with Katsuki, please just tell me and I'll sort it out for you." I said with what looked like my normal smile to everyone but Izuku and Katsuki who knew its real meaning. There is only a small difference between my normal smile and the one I was giving at that second in time. The difference is I usually relax my eyes when I smile, but in this smile, which I only use if I am being serious, I slightly squint my eyes. Of course, Izuku and Katsuki had learned this over the years of us being friends so they could normally tell the difference. The last person went, then Aizawa-sensei told us to get in to our gym clothes and head outside where he would be waiting for us.

10 minutes later. Outside

"So, we will be doing a series of quirk tests. Saki you got the highest score on the entrance exam, right? "Aizawa asked as he explained the exercise to us.

"Yes, I did." I answered honestly.

"Great come up here please. Tell us what was your score in middle school on the ball throw." Aizawa asked me as I walked up to him.

"77.7 meters and if you don't believe me ask Izuku or Katsuki." I said now standing in front of everyone with a ball in my hand.

"Ok now throw it using your quirk." Aizawa said with a slightly surprised look on his face.

"Got it." I said getting ready to throw the ball. By getting ready to throw it, I meant standing there throwing it from one hand to the other. Ok so let's freeze time and get this baby to a heck a long distance away by speeding up the time around it as I throw it upwards.

"It disappeared." exclaimed Mina. Several other students also looked surprised.

"Infinity x2." Aizawa said in disbelief at what was on the screen in front of him.

"How!" yelled everyone apart from Izuku and Katsuki who were both well aware of what I could do.

A few weeks Later

"Alright class tomorrow is the UA sports festival." Aizawa said as he walked in the door.

"YAY!" We all shouted in excitement while jumping out of our seats.

*Hair goes up due to quirk activation* "SIT!" Aizawa yelled at us.

*Silence descends*

"Good." *Hair goes down due to quirk deactivation* Aizawa said as he fixed the pile of papers in his hand.

"Go get into your gym uniforms and meet me in gym gamma for practice for the sports festival." He grumbled as he left the room.