@SunderMInd That outfit is a traditional outfit for babies. of course china still relies on shitting in public for babies rather then diapers. ie on the side of a road and ive seen people use trash cans by holding the baby over it. So the one sidedness of the outfit is for those reasons...
@Gotim18 This type of stuff bothers me too, there is no reason she cant say "the girl with you is my friend from when i was little and she tried to kill me and then took my place and will try to kill me again if she knows im alive". though i suspect she would be scared to say anything right now, but the story doesnt seem to try to explain that. But such things are typical for these stories.