Complicated.. KidxReader/ Steins Daughter

First Impression..

While walking in the hallway with your best friend you all see a weird white figure with a cane and top hat. He asked everyone if they wanted to be his meister, then he came to us and said "I am the great Excalibur!! Would any of you two be a dear and become my meister?" As I looked at (Bf/N) we both look back and say "uhh..who are you exactly?" Excalibur suddenly puts down his cane in dissatisfaction and then points it at us saying "FOOLS!!" Suddenly Plurmp decides to chase Excalibur due to being called a fool. As I watch dumbfounded to them running down the hallway I laugh a little..
I walk down the hall looking around and I accidentally bump into a slender tall man with red hair and blue eyes.. I end up on the floor rubbing my head.."owww" I say. He looks up with one eye open and says " Oh! I'm sorry little miss I didn't mean to bump into you!!" I look up and say " oh no no it was my fault sir!!"..*he offers a hand to help me up*.. "thank you" I say . "Nice to meet you!" He says "My name is Spirit"... I tilt my head in confusion  "Spirit?" " Ah yes that's my name " he says ..."My name is (Y/N)" *I smile*
" That's a lovely name!..Say you remind me of someone..." he said. Well my appearance should give something away I have black raven hair and red eyes plus a special feature...yes just like my father I have a screw in my head...and yet he can't figure that out?...Spirit intently stares at me and finally says "hmmm...nope I just can't figure out of who you remind me of.." *mentally thinking SERIOUSLY!!* I then ask him "do you know where lord death is ??" Spirit responds " Oh!! Yes I do I'm actually headed to go see him right now!!"
" can you take me to him please?" I say
"Sure just follow me!!" He says
~After a while of silent walking~
" We're finally here!!" Spirit says. As I look up the door was rather huge..As we entered there was a long hallway leading to a few stairs that led to a mirror and next to it were small clouds, a few windows and on the bottom were small crosses buried in sand. There was also what looked like a throne type chair and sitting on the chair a boy with well his appearance was rather unusual. He had black hair with three white stripes and he wore a black suit with a skull in place of a tie. Spirit says "Lord death I have come to see you and I believe we have a new pupil who would like to attend the academy" Then the mirror started to move and out of it came out what looked like a reaper.

"Well hello there Spirit and whom might you be?" The reaper said
I cautiously stood in front of spirit and said "Hello , my name is (Y/N)" Then Lord Death gets super near me then says" you look familiar to someone that I know...are you sure that you are new here?" *I quickly start to get nervous* "W-what N-no I just came here just a few days ago!!" Death says "Young lady your last name perhaps wouldn't be Stein would it?"
As I look the other way the young boy looks at me with a confused look..
As I was about to respond..the door is slammed open and I turn to see Excalibur running towards me followed by Plurmp , (Bf/N), and Hero...Excalibur yells "Get this demon off me!!!" Then (Bf/N) says "Plurmp help me!!", while Hero runs chasing her yelling "Come here my darling!!"
As I looked them I did a facepalm, then Lavender got a rope from my backpack as I held one end she ran ahead of the crazy line and tugged at it making all the commotion stop completely...
I looked at Lord Death who is completely confused while Spirit was laughing away, and the young boy just turned to me giving me a hard cold stare... "I'm so sorry Lord Death I didn't mean for that to happen!!" I said
Lord death responded " It's not your fault child it was something you couldn't control ". "Allow me to introduce (Bf/N) Phantomhive (you can change it) she is my partner. " I say
Death asks "what type of weapon is she?" And I say "she is a unique scythe" "May i see her weapon form?" He asks "um yes sir" I say
I look at (Bf/N) and she nods changing instantly into my hands. Death responds confused "wasn't she purple just a minute ago?" "Yes she was, but she is cursed by a pickle farmer named Sour Sammy who is part witch..yeah it's kind of crazy but luckily I saved her in time!!" Death shook his head and said "pickle farmer??" " That's a story for another time" (Bf/N) said. She then changed back and death turned back to me so that I could answer my question. "You two may enter this academy under one condition...until you tell me who you are (Y\N), it's not everyday that a random pair comes to the academy none the less looking for the Professor unless there's a good explanation for it...." he says in a serious tone.
As I took a deep breath...I looked up at Death who somehow had cat paws on??and said " My real name is (Y/N) Stein and yes I am professor Steins daughter, unless you can see the dead giveaway...*points at screw in head*. Spirit yells "WHAT!!" Of course Lord Death knew just by looking into my eyes...and the boy next to him had his mouth wide open, but then death closed his mouth.
Death says "Well that's good that you have came here to the academy and not only to see your father but also to become a better person..I like that about you...(Y/N)." " Yet for proving your honesty you two are now apart on the academy!!" I smile thanking Lord Death. While (Bf/N) jumps around cheering holding Plurmp up in the air.
Meanwhile Spirit comes up to me and says " how about we become friends?" I look up at him smiling and said " Yeah sure"