I have a question that I didn't quite completely grasp yet. 

To my understanding the Night Kiss assassins work mostly alone on missions, is that correct? If so, how tight are the bonds among themselves inside the organisation? How many people are there? How and how often do they interact? Do they practice teamwork? 

I feel like I need to ask those things to build my character appropriately. Also, if everyone knows themselves a relationship/opinion chart might be useful, or a list of previous missions completed together or something?