ISEKAIED

As a normal school day goes, home time is the best time. "I, Haruki Geto, am your average 15-year-old who somehow ended up in another world." He forgot, but as he looked at the sight only possible through the grace of the wind, he thought, "If it wasn't for her, maybe I would still be alive!" (Haruki was walking home from school when he got distracted by a girl's panties as the wind blew her skirt up and got hit by a truck. But when he awakened, he had lost his memory, so all he knew was that he had seen panties before reincarnating. Only 10 years into his new life, everything came back.)

In a new reality of another world as the boy puts his hand forward to unlock his magical abilities and what seems like a screen that is calculating numbers a burst with aura aminated from his body covering the hall with its might as if someone flooded the place full of water only to immediately be reabsorbed by the boy as he remembers what he was who he is and what he will be . 

"I feel like I've been sleeping for years only to find my self in this strange place that I seem to be familiar with. Every door , every corner I walked in and wandered around...yes this is the home I've know for 10 years."

Hey no,786 what was that ?! I get that you now of age and have magic but there is no need to show off … anyways what was his magical power level Sir?

"… i .. ITs 1 000,000 he Hes rAnK iS A+ !"
( that cant be he only just unlocked his magic . his only a commoner. they say his of unknown origin and was left here at birth) "Enough everyone THIS MATTER WILL REMAIN HERE UNDERSUTDE!! YES MA,AM "

From then on, I was at the top of the class that year, but my rank was set to C+, and I was praised by some and feared by my grade. As for the two teachers who were present, they were more worried, as if this was some sign or something, but we were clueless and paid little to no attention to it. As for me, well, I have over a hundred plans for this new life, and no one will stop me from ruling this world and living my best life, and maybe getting a few things I couldn't get in my old life. That's right, I'm taking all the women I like.

To my standards, this school was not the best but also not the worst. In my past life, I had the chance to attend both a private school and, later, a public school, and I will say that it’s not as good as my private school but not as bad as the public school. So, in terms of place, I’ll have to say this is middle class at best.

"Normally, students at the age of 10 start out at rank E to E+, capping between levels 100 to 500, which is good for anyone. In terms of power, one with the right control and mastery over his or her magic at level 100 can destroy a house, and at level 500 could even level a city, if they had the right spell. That's the reason God sealed the powers of all races; only a school is given the right to unlock a person's powers at the right age, provided they pass all the exams. Before awakening, children were weak and had to eat as much food as possible without overeating in order to give energy to keep the seal from breaking. What you may know, but we didn't tell you, was that children who ate less had less resistance to the seal, so it affected them less. Thus, they were physically stronger, had less magic, and had more potential in swordsmanship, which is why they have more energy to use. But you, on the other hand, didn't show signs of having a lot of mana, so you were given less than half the food you should have had, yet somehow had the most magic. So tell me, what do you have to say for yourself?"

"Big sister what do I have to say to you I'm just happy to have such good talent "

        "Good talent maybe but remember I'm only your big sis at home ." WE ARE AT SCHOOL! "

"Yes Ma,am."

            "Call me Miss Carlly , also Rukito you will take the final test tomorrow as we dont want you destroying the school so best not over do it ok"

"Yes big si..s AH mean Miss Carlly eh     anyways gotta go see ya latter MY SWEET BIG SIS!"
(that boy never listens he always does what he feels is right but never speaks to others the way he speaks to me )

As I run back to my dorm someone familiar calls out to me. "Sayo-chan slow down don't jump!"
Sayori or as Rukito calls her Sayo-chan is his childhood friend and Carllys second cousin. shes still has 2 years to enter this school but stays with her cousin  "Big brother Ru-kun I hear u did something bad."
"Bad? huh I never do anything bad... OH YA they unlocked my magic and I'm at the top of the class and hares what happened..."
"So big brother Ru is not in trouble but surprised everyone by how strong are . Waah why was I not there to see I wish I wasn't 2 years younger than you could be as strong as you "
"Thats Ru-kun also you'll get there plus its not like school is this fun place to have fun as you would think"
"Don't act like you've been in school for years its only been 6 months  and other than having no friends u now top of your class so people will naturally want to befriend you also watch out for girls don't that to them when u have me!"
"Eh you scared they'll take me away hahahaha . Firstly I'll have all the girls I want secondly I know you my whole life how could I all for you when u the same cute child I still see u as plus you like a sister to me"
Sayo-chan ran away back home crying. Rukito returns to his room to practice controlling his mana for the first time

As I circulate my mana throughout my body, following the same flow as my blood pumping through my veins, I feel just how much power I hold inside me. It's like feeling the pressure of the ocean, but unlike it being outside, it is as if I can control the power of the ocean of mana inside me that feels bottomless. With so many possibilities, it’s endless how much I can achieve. Let’s try forming a ball of mana in my hand, like an energy ball...

As he forms the energy ball in his hand things go well but as time passes the building and even the ground starts to shake but its much worse on his side . 
I something dark pushing out and as its pushing out my mana is gettiingng out of control and it feels like I'm about to explode . "uh..!?! " " I need to imagine sucking all the manna in a bottle and PUT A LID ON IT!" (sigh...)  as I begin to look at the mirror I see myself for the first time my eyes is somehow red? In the memory's of my new self my eyes was grayish purple yet it turn red but now that I look at it its going back to its original color 
A lot of people hear has more brown ,red ,orange and even pink hair yet I don't see any with black hair , even big sis has light blonde hair as for Sayo she has dark red hair that's close to being black .

After taking the test everything went quite well for Rukito spent 2 years in middle school skipping 3 years due to his talent in magic but also because of  how smart he was even teaching the teachers a thing or 2 .The last 3 years Rukito dedicated  it to his plan of reaching the top .

After failing to get people interested in his new inventions, which he derived from his old world, and due to his lack of knowledge in actually making the items himself, he began studying magic. There are the four elements that he learned about in school at the time, but they teach more only in high school. He began mastering every element, and after a year of studying, he finally hit a breakthrough, discovering how to use his elements in a way no one has ever done before. By creating ice, plasma, and electricity, he discovered a way to travel through space. However, this power doesn't come from the five elements, nor does it use mana, but Rukito knows he needs to study this more than anything else and should keep it a secret for now. As for the other endeavors, writing a few magic books and selling them made him a fortune.

After a year of selling a million copies of my book, I have the money to buy the whole city, but of course, I'm not going to do that. However, I got approved to market and sell globally, thanks to a big event. Merchants from all around the world will be coming in two days, and my big sister’s father’s uncle, Grayfield, is helping me, and I get all the profit. Uncle Grayfield is the Duke of this dukedom, so if it wasn't for him, this wouldn't be possible, but my big sis came through for me. Man, I can't wait!

Eeehh (yawn) today is very quite I wander where everyone 
"Sayo-chan!" Big sis! "ANYONE!"
As I walk I feel something telling me not to go further but I open the door just to see a man holding Sayo by the neck as the man turns to meet my gaze as if he was waiting for me to come in.
"BIG BROTHER .... RUN!!!!!" (as she screams for Rukito to run the man holding her by her hair lets go as he slices her neck as if he was playing a game with the goal being getting a clean cut in mid air) 

The house as well as the city starts to shake as Rukitos mana is expanding rapidly out of control . Anyone below A rank would pass out be the amount of pressure that's in the air
Even the guy that killed Sayo stops laughing 

Rukito watches as the girl he grown up with a girl he loved dearly as family get murdered in front of him  everything hits as he was so ignorantly walking over his dead classmates to come here . The smell of blood never feel of as he was only worried about Sayori and now the only thing going though his mind at this very moment is

("!!!KILL KILL KILL KILL!!!" )
"!!!IF I DONT KILL YOU TODAY MY NAME WILL NOT BE RUKITO!!!"