Essentially, who is innocent and who is not?
Let me know if you were surprised.
Also this is about the most dirty this book is gonna get so-
Also slight spoilers for 9S.
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Innocent (you have to tell them the birds and the bees): 2B, A2. (As fighter androids they aren't interested in learning about past human culture and way of life, good luck with that conversation).
Guilty (oh they know. They don't know it all but they know enough): Adam, Eve (That shouldn't be surprising)
It's complicated: 9S (he knows but he gets killed all the dang time so he forgets it and relearns it so-)