Hierarchy problems

[atamasan]

Sorry, another quastion.
I tried some hierarchy calculation for each bones.
When I bend my fingers, the influence of hierarchy wasn't seen.

But...I bent my fingers when I turned my palm inside out, the hand model's fingers were bent. But it was a inverse rotation compared to the real rotation. When I clench my fist, the hand model's fingers were bent backward.

I'm confused what is the reason for that.
Do you know any idea?

Thank you for reading.