Thread:AaronC141/@comment-69.131.149.167-20151202011455/@comment-26689808-20151202015200

I see.

It wasn't directly stated. In Part 1, Eto stated that she was 10 years older than Hinami(and has no reason to lie about this), making her 24 years old. The time that Yoshimura posed as the One Eyed Owl was 10 years before. This means that Eto was 14 at most when she had the SSS rating.

We also don't know enough about Eto's past to judge how it affected her mentality in comparison to Kaneki.