Kinda baffled me that an assasins not suspecting a stranger they never met before
Tbf other than ppl on their radar there's probably plenty of strangers they don't know, you can't pull your knife out at everyone you see reaching in your pocket in case it was harmless and you kill ppl unnecessarily but i assumed kei was faking it or so as some long con versus just being naive if not just a 'cutesy quirk' of 'assassin good at their job but no common sense/basic skills of everything else'
Buuut i guess the upside is she's probably hella rich after each 'mission' so she wouldn't run outta money on these compared to the 'average' person who falls for pyramid schemes