Reincarnated as an overpowered unknown

RUBY

At this moment, I was outside the guild house, I searched for a place desolate of people for awhile before finally finding one.
After making sure that no one was around, I summoned Airi, after a few moments, light began shining beside me followed by which a very beautiful girl appeared.

"Airi, are you ready?" I asked her.

"Mn, don't worry, I know what to do" she said to me.

I nodded my head and after which we began walking back to the guild house.

Upon entering the building, we directly walked towards the counter, while on the way, we have been observing the adventurer tags of others, we noticed that copper,steel,silver,were the most commonly seen among them, as for saphire,gold,and black gold, there were quite a few of them,as for platinum rankers, we only spoted around 20 of them while we only found 6 ruby rankers, there were no emerald rankers among them.

We continued walking towards the counter and noticed that a lot of people were staring at us and before we could even reach the counter, someone with a gold adventurer tag blocked our way.

"Hey beautiful, what's your name? With your beauty why are you hanging around with someone like him?" after saying this, he reached out his hand and tried to touch airi's face, but before his hand could even reach, another hand intercepted his.

When the man saw this, he ttied to retaliate,"hm?! Who the fuck are y..." but before he could even finish his words, they got stuck on his throat when he saw who it was.

"Riessfield,Ruby adventurer is there a problem?" asked that person.

When I looked at who it was I saw a very beautiful girl,she had yellow hair, yellow eyes, and a very beautiful body, with a very beautiful face, you could say that she was the perfectgirl,she's the kind of girl you would want to protect no matter what even from just light injuries.

"So-so-sorry ma'am I didn't mean what I said, it was all a jo-joke" said the gold ranker.

When riessfield saw this, she nodded her head and said in a threatening manner,"if you want to keep your life then scram right now"after saying this, she released her grip on the hand of the man, after which the man immediately ran away and stood at a certain corner of the building.

Airi and I looked to the girl and said at the same time,"Thank you".

When she heard us, she merely smiled and said,"it was merely nothing, I'm riessfield by the way,Ruby ranked adventurer,how about you guys?" she said while reaching out her hands.

I answered,"Riessfield huh, quite a fancy name.My name is toshiro,currently registering as an adventurer" after me, airi answered as well,"Airi, registering as an adventurer as well".

"Mn, Nice to meet you, Airi and toshiro, how about I accompany you to make sure nobody else bothers the both of you" said riessfield.

We both agreed to her offer after which we began walking towards the counter. Upon arriving, we saw the same girl sitting on the counter, when she saw me and airi, she smiled and said,"seems like the one you waited for has arrived, may I ask miss if you are planning to be an adventurer as well?".

Airi nodded her head and said,"I am planning on being an adventurer as well, but before that I will check Toshiro's stats is it fine?".

The girl at the counter nodded her ehad and handed the same kind of paper she gave me,"Please fill in the info on this paper, We will get someone to check your stats later on after cheking his"she said.

Airi filled in the paper and handed it back to the lady at the counter. The lady began scanning it once again after which she looked at us and said,"Please follow me, I shall bring you to a room, you can check your stats there" After saying this, she stood up and began walking towards the stairs leading to a higher floor.