Akani/Akane is her Human name.
She is horrible sorry for what she did to Yao.
She and Kuro both experienced not the greatest experiences, since in their universe, China is addicted to drugs and barely out of his drug hallucinations.
Akani and Kuro needed to learn everything on their own.
They both were filled with rage as soon as they realised what 2P China has done to them. Of course Nyo 2P China as well as 2P China.
Xiang and Xao.
They both ruled Japan in every time, I've had war with China.
Everytime.
Because they are obsessed with rage.
They noticed too late that if they hurt Yao, they won't get revenge.
Even though both of them trained emotionless and emotional strength.
They broke together as they realised it.
When did they realise?
On 6th August 1945.
And they already got a new rage victim.
America.
-Nihon-Teikoku