I'm sure you've all been wondering: did Gasai kill her own parents?
The answer is yes, but by the time that's confirmed you realize that there's a reason she's crazy and it's their fault.
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Eleventh's agents kill Amano's father. Amano decides to win so he can fix everything.
Amano plays hardball.
He unmasks Eleventh, revealed to be the Mayor. He allies with Eighth to take out Eleventh, then double crosses her.
But right as their victory seems assured, Akise and Ninth arrive. They found three bodies buried under Gasai's house: her parents, and her.