Costume party at Iscariot! That’s Yumie with Anderson. She’s the alternate personality of Yumiko (one of the commenting kao; the other is supposed to be Heinkel, not Seras).
Anderson: Did Yumiko have any objection to the costume?
Yumie: She would if she knew about it.
Yumiko: She’s so awful! Do something, Heinkel!
Heinkel: Against your worse half? Not likely.