Okay this is Kiri Miraculor the guardian of the miraculous . And also a guard of the yin-yang chosen . She sometimes unlike ladybug and cat noir 's personality . She was quiet a bit quite and also she use smoke-bomb once the missions complete . And her wapeon was blade gauntlet there for it's easy to make it like an assassin and also it changes to a bow gauntlet while doing . It's rare to unknown to know her .