Japan has a conviction rate of 99.9% for criminal cases that go to trial. A lawyer (Hiroki Hasegawa) is able to defeat those odds and obtain an acquittal for his client, even though there's conclusive evidence that says otherwise. Sometimes, due to minor things, good and evil can switch sides and good people can become bad people.
Sailor Zombie was a TV-Tokyo Drama which featured members of AKB48 in its main casts, some of their guests are also from AKB48. It's title theme song Sailor Zombie was sung by the sub-unit Milk Planet who are also in the Drama as narrators.