As they were travelling in different worlds, their souls were fusing into each other

Gamer:"Oi, does any of you guys have a wish or goal if the one of us turned out to be the main consciousness? Me I want to be a Hero then have a nice harem"

Scammer:"It's a fantasy world right? I've read a thing or two about it, so I wanted to be a merchant or something alike"

Doctor:"Me? Then I want to study medicine in this world"

The three of them look at the remaining guy

Gamer:"So what do you want to do?"

Assassin:"I... I want to lived a peaceful life"

Gamer:"Well, if you turned out to be the main consciousness then I'll be damned"

In the end neither of them became the main consciousness. 

****

The World of Lugia, continent of Skafron, the kingdom of Renosia

In a noble family, a child was born

"Born with silver mark on the chest, she shall be known as Rea Silver Spriggard"

****

Rea Silver Spriggard, a peculiar child, why? Because she never cried after her birth. At the age of 2 she learned how to walk, at the age of 3 she learned how to speak, read and write. At the age of 4 we found out she's a genius when it comes to magic, she can fluently control mana and easily make beginner spells. At the age of 5 we tested her mana but the mana scaling stone broke, even the mana scaling stone that's use for high rank magic beasts, it still broke. At the age of six, I asked her what she wanted to do in the future, she said

You might be reading a pirated copy. Look for the official release to support the author.

"I want to be a Hero, build a harem with beautiful girls then became a merchant, study medicine and live peacefully"

Just what had she'd been reading?! 

****

"Where's young miss?!"

"She went and sneaked out the mansion again!"

"Go find her!"

Rea Silver Spriggard, that's my name. I didn't expect that my reincarnation would be this lame, I mean a girl? Seriously? How am I suppose to build a harem? Harem filled with guys? How about, No! Okay back to my introduction, right now I'm 7 years old, no cliche fiancé, just a annoying father and a childlish grandpa. No mother. Mother died in my birth. 

"Young miss~ please wait"

This girl that is following me is my personal maid, Elli. She's Dog demi-human species. 

"You're so slow boobs"

"But you're using magic~"

So back to my info. Even though I remember all those different kind of past memories, I feel like I'm all of them, but also feel like im not them. 

"Where are we going this time~"

"Somewhere fun"

****

"See those boobs?"

"B-b-bandits? What are they doing here? Aren't they afraid of the Spriggard house?"

"Who would suspect their hideout if it's near a noble?"

"That's true~, but what are we doing in here? We are gonna get seen"

"Huhuhu, boobs do you know the rank of the spells I can cast?"

"Hmm~, the last time you use was a fire magic, was it rank 5? That really was so strong it destroyed the courtyard!"

"Huhuhu, since when was it?"

"Hm, ah! It was last 4 months"

"Hu, now I'll show you high ranked spells that I haven't tested yet"

"Really~? What rank is it?"

Hmm, this bandits are small fries. But there is one strong one with mana that could cast rank 5 magic. 

"Rank 7, I'll show you the might of fire and wind magic!"

"Wow, are going to use it now?"

"Yup, now—Fire that burns my enemies, wind that cuts, form a tornado that demolishes my foes! Burning Tornado!"

"Waa~, awesome!"

The bandit camp

"Gyaa!"

"Magi—gahh!!"

"Ahh!!"

"We are under attack! Gahhh!"

In the Spriggard Mansion

"Do you see that?"

"It's young miss again making trouble"

"Go! Bring back my granddaughter"

"Yes sir!"

In the bandit camp

"Fufu, did you see that? If I have phone I would've taken a selfie right now!"

"Yes~, even though I didn't understand what you are saying but that was really awesome young miss!"

"Praise me more!"

"Yes~! Young miss is the greatest! Young miss is the Harem king!"

"Hm, someone is still alive"

"W-w-what should we do~? W-we should run young miss!"

"It's okay, just a small fry"

"How dare you kid! My men! I'm going to kill you!"

A boss eh, just a small fry. 

"Lighting Bolt"

"Gyaah!"

"You can't even defend a simple spell? How pathetic"

"You will—"

"Lighting Bolt"

"Fugyahh!"

"Young miss! The Duke is telling you to come back"

Finally, the guards are here. 

"Take this bandit prison or something, c'mon Elli we're going back"

"Yes young miss~!"

****

"Grandpa!"

"Hoho, my cute princess"

"I found bandits behind the mountain"

"So that was the reason you went there"

"Yes, so what's my reward?"

"Hoho, I've prepared this for you a long time ago"

Grandpa took something from his robe, with a faint smile he gave it to me

"What's this?"

"Hoho, it's school"

"W-what?!"

"You are going to school next year"

What?! School? Well, I've never heard of any school in this world before, all I know is that it exist. I hope it's lessons are not the same in—what was the name of that world again?