The Potion Master's Daughter(Assassination Classroom, Harry Potter Crossover)

What are you doing here?

"Wait, how do you two know each other?" Professor Snape asked.
"She currently attends the school and class I am teaching. In fact, she was in my class less than 5 hours ago." Korosensei answered.
"My god mother set it up to where I could attend both schools at once. The only condition was that I would be dropped down to a lower class for the sake of balance. I attend Kunugigoka first then Hogwarts after I finish my homework for your class Korosensei." I elaborated.

"Who is your god mother?" Snape asked.
"Professor McGonagall. I didn't know she was my god mother until my last birthday when she took me shopping for supplies. She has told me who my mother is but refuses to tell me who my father is since she had me in school with someone who wasn't the father of my half brother. He is currently staying with our aunt, I should really make time to introduce myself." I said trailing off towards the end.

"So the plot thickens." Korosensei stated seriously and turned white.

"Indeed, what do you teach at this school?" PS asked.

"Just the advanced sciences, maths, literature, languages, history, life lessons..." Korosensei began to trail off.

"It is really just a school for teenagers who are advanced to prepare for higher learning. I am the only exception since I won a scholarship from my science fair project. I was about to end my second year in A class when Bachan came and told me about my mother. But due to the deal I am in E class, as terrible as it is, the people are nicer and less back stabbing." I said in thought.

"I think E class is very back stabby, a bit too much actually... and it doesn't help that Karma has arrived and you have started to gang up with him. I know that I am the target since I am holding the entire world hostage, but you two don't have to be so mean about it" Korosensei pouted.

"What do you mean hold the entire world hostage?" PS questioned.

"Uh Nothing! Forget I said anything! Everything is fine! I am certainly not going to blow up the planet like I did the moon! You have no proof!" Korosensei shouted flustered.
I took that chance to slice a tentacle off.

"E class is also known as the End class, aka end of the line for a good life. Everyone expects E students to become murderers and thugs in the first place so the UN decided to give the E class a chance to improve their lives should they complete a task, and if we fail the task, everyone should n the planet will die." I explained and picked the tentacle off the floor. I cut it into strips and placed it in a container of preservatives.

"And the task?" PS asked.

"I am both her teacher and her target. I have been turned into a ticking time bomb by scientists and the children in E class have the task of eliminating me. It really shouldn't come much of a shock to you Severus, you knew I was an assassin before I got turned into this, now I have to pass on my skills to the ones who need to kill me. Hanako here is surprisingly good with a knife and light on her feet. She is able to flip and propel herself off of almost every surface. She holds a good career in the art of assassination. Though, she does need to improve her aim when shooting, she hits the target but it is rarely a bulls eye." Korosensei said putting a tentacle on my shoulder.

"I believe it, she has some of the best knife skills in all of my classes. You just seem to fit into Slytherin more and more." Snape commented.

"But that is enough of that! Let's get to brewing! It is time to see if Hanako here is as good at potions as she is in chemistry." The octopus said making me smile.

"So you agree to mentor her?" PS questioned.

"Yes, I will teach her after school. We can call it advanced tutoring. I still don't know why she goes here if the Magical side of Japan has classes for the younger generation. I believe they are placing Karasuma as head of the teen division for next year, you could always enroll their." Korosensei said gathers ingredients for liquid luck.

"Well I guess I can question now since finding the information on my own is difficult, but can you explain the magical side of Japan?" I asked.

"Sure. There is the shopping district which I am sure you have found, the underground school which students are observed in regular classes then get transferred to the supposed higher learning college but really it is the Magic school, the street performers who entertain visitors for money, the circus branch that travels, the technology based witches and wizards who cast through phones and tablets, the ancient sealing masters who generally make their living by doing pressure point healing, and a few hidden groups. The laws are very simple...
You may do magic any where in Japan, but if any non magical people see you then you must fabricate a lie to throw them off.
Magical creatures, such as vampires, wear wolves, and etc., will maintain the same legal rights as a witch or wizard.
Teens get emancipated at 16.
All branches of magic are allowed and no one has the power to ban them.
To get a mastery, all you need is a recommendation from a master and then take a written and practical test through the government.
If you really felt like it, you could wipe out your potions and transfigurations mastery by the end of the year. I have those so I could recommend you. I do feel bad that you and the rest of the world will get destroyed before your 12th birthday." Korosensei said sounding truly apologetic.
     Huh, emancipation at 16, I am all for that. As nice as my care taker is, I want to move out as soon as I can. "Sounds good."
We ended the night by brewing the liquid luck.