The misunderstood teacher (kokushibo reader x hp)

1st lesson

Harry pov-
It's our first lesson of school today and it appears to dad's class let's see

Then the 1st year gryffindor and 1 St year Slytherin went out or the lake where my dad was supposed to be, but only his clothes were there ,

Me- DAD! WHERE ARE YOU!!!
I was starting to get worried, just then there was some movement in the water and dad came out only in his pants and hair still tied the same way . It was the first time I saw dad's body , it was covered in nasty scars . Meanwhile the boys were horrified I looked to the side to see all the girls having nosebleeds
Me- uhhh Hermione are you alright?

Her- why wouldn't I be when I can feast my eyes on him

Me- he is literally 10 years older than you

Her- so what?

Dad- uhhh are the girls ok? Do you need to go to the infirmary

All the girls - NO SIR , WE WANT TO STAY
Dad- very well then , let's start are lesson shall we

Everyone- yes professor

Dad- very well then , we are going to have six class in a week , 2 physical ,2 mental ,2 swordsmanship , In physical class we will train our body , in mental classes we will train our minds and the last one as the name suggests , any questions?

Malfoy- yea , why the hell are you still here?

Dad- no question , then let's start , so i have these boxes with me and they have numbers in it , pick at random and your opponent is the one who has the same number you have

We all went to the boxes and picked the numbers
Ron- hey harry what did you get
Me- i got 1
???- WHAT!? I HAVE TO FIGHT YOUUU POTTER
Me- i just had to pick Malfoy didn't I

Dad- No excuses , start

Y/n pov-

Hmmm , well I cant say I expected them to be this bad ,

Me- Alright everyone stop and line up ,  I observed and we are going to have to do some tremendous practice but beleive me by the time I am done with you , you lot are going to be masters in all forms of moon breathing , its already evening so hurry up to your classes

Thats when I saw a hooded figure sneaking into the forrest , 

Me- Intresting

???- what happened dad ?

Me- nothing harry nothing

(i know its short but just bear with me)