Chronoa is hypnotized by the dark demon king Mechikabura,she obeys Mechikabura's orders,she obtained it through the Power of Darkness.
She can be recovered again by means of the key sword,which will purify her from Mechikabura's mind control,but now she is still controlled by Mechikabura.
Chronoa is hypnotized by Mechikabura,which causes her attitude to be somewhat evil instead of her good attitude,but she does have her inner kind sensitivity but it is hidden by the mental control.