because i dont think this is a spoiler but rather a refined version from source material, ill just copy paste the fan translated version of novel where brain just met new shalltear
Her clothes and the color of her hair were completely different from that time. Back then, she might have been said to have been born of the night, but this time, she seemed to have descended from the moon. But even so, there was no doubt that they were the same person. The image Brain had seared into his soul from before layered itself over the person he was looking at now.He was sure of it. Under the mask of the young girl above him was the face of that monster— Shalltear Bloodfallen.