A kind girl who's so kind to everyone that you worry about her. You wouldn't imagine it from her appearance, but she's a master of drawing a blade, can escape from bindings in an instant, and can use almost 100% of her power.[Past]
Due to the manipulations of a certain person, Shizuku was treated as though she had died at birth.
That person then took her, and raised her to be an assassin.
When she was 8 years old, she was a top assassin, known as "blue eyed tears".
Back then, she didn't use her blade drawing technique, but instead used a variety of knife skills.
Maybe I'll draw the specifics of this as a side story...Suzunari Shizuku