From microscopic dynamics of charged chiral fd-viruses, the soft-mode is revealed with a rotation restoring “twist”, obtained from both polarized (VV) and depolarized (VH) small angle dynamic light scattering. Here, I have found the minimum spatial coherence length at a lower I–N binodal concentration, which is due to the reverse of electrostatic repulsive forces with an increase in the concentration of charged chiral rods.