I just watched the second episode of Majisuka Gakuen, and I think I'm starting to get why Atsuko Maeda rubs me the wrong way. I used to think it was because she has no personality, when really, it's that she has an unlikeable personality.
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Spoilers for the first two episodes of Majisuka Gakuen, and a lot of tl;dr about Atsuko Maeda and AKB48 )