Queen Of Assassin

She's a Heartless oh! She have but in Charlie Tanggo or let's say he's Gang!
She's a Cruel , A monster, A cold , A woman if few words , a short temper and she always wearing her blank face.She kind of a girl who has a straight forward she even don't care about the feelings of other people and a One thing She's ASSASSIN and yes! She's a killer and that because of her past that she can't move on and turn around all she wants is a revenged for her family Ten Year's a Go ! She need a answer to her Question that

"Why did you killed my family.."

She's Going to a mission itself! She need to kill people who kill her parent's and apparently ms.black tell her

"You'll need to go to school... Even you doing that mission and i have rules to you"

"No Boyfriend"
"No Friends"
"Not attached to anyone"

Because she needs to hide her true identity thats she's Assassin But how did she do that? If her surrounding is full of attemps...

She still do the rule or she going to break it?