  We propose an inflation model in supergravity, in which chaotic and hybrid
inflation occurs successively, followed by new inflation. During hybrid
inflation, adiabatic fluctuations with a running spectral index with $\ns >1$
on a large scale and $\ns <1$ on a smaller scale are generated, as favored by
recent results of the first year Wilkinson Microwave Anisotropy Probe. The
initial condition of new inflation is also set dynamically during hybrid
inflation, and its duration and the amplitude of density fluctuations take
appropriate values to help early star formation to realize early reionization.
