I'm surprised that I haven't seen her in this outfit before
Well duh, Presence Concealment [A+]
Hmm?Master...Master.Presence Concealment [A+]Master hasn't noticed me... Hmm?My,this voice, you must be Serenity-cha...Wai-...!? Why are you in that kind of outfit!?Master... I want... your attention too... meow.