Bad time trio

You are Swapshift Frisk(a girl version) you find yourself in the judgement hall but three people stand there instead of you, two skeletons who you recognize as Sans and Papyrus however you don't trust Sans because he was the one that cauesed the genocide in your world Sans is wearing a blue hoodie and Papyrus is wearing a orange hoodie, there is another human as well you recognize as Chara, Chara has red eyes and brown hair, these three attack you thinking you are someone else can you prove them wrong?