User blog comment:TheNewProtagonist/Vol. 2 Episode 3 - And everyone's brains exploded./@comment-9464517-20140810112514/@comment-11188061-20140810113612

Actually, a minority of people - I think BenRG is one of them? - did deduce that there might be a sister, but how serious people actually believes it (since there's many counter evidences) is an actual issue.