Femme could have done her next move the moment Ouja began charging at him, but she waited for maximum effect. As Ouja got close to her and swung his sword she activated the secondary effect of her Guard vent, an effect unique to Femme's shield - short range teleportation. Ouja's swing collided with nothing - not even a block - as Femme teleported right behind him before following up with a stroke of her own with her rapier.