Concealed weapons fail.
1) If you have to fiddle this much getting it in there, you’re going to be in trouble if you need it in a pinch.
2) Fucking SCABBARDS… deesh! The way that knife is, that lady is going to slice both her leg/butt open and her knickers off.
3) Everyone’s going to know it’s there with a dress that tight
She’d be better off with a smaller dagger up against the sternum. And a high enough neckline. Less people grope there.