User blog comment:ChishioKunrin/Why the introduction of ABRN is not a bad thing/@comment-25405817-20150823005059/@comment-4010415-20150824225018

If it's so obvious, why do we have people whose immediate reaction was literally either "It's Summer!" or "It's alternate universe Yang!" or "Yang has a twin!"?

And yeah, I kind of agree, it wasn't meant to be a plot twist.