omg, OMG!!! Even though the chapter is short, it kept me in suspense.
I'm wondering now, did the girls really saw Yuuko but just got those memories erased, or did they actually never met Yuuko? O_o dun dun dun!!!
anyway, i remember the twins; one of them was really shy and had low self-esteem, while the other one was upbeat, confident, and popular. The words was tyin the shy twin down and Yuuko broke those "strings". In return, the twin cut her hair and had it very short at the end of the story.