We have observed a radio-quiet QSO Kaz 102 ( z=0.136 ) with ASCA as a part of our program of complete spectral characterization of hard X-ray selected AGNs .
We found that Kaz 102 shows unusual spectral properties .
A simple power-law with absorption in our galaxy gave a satisfactory description of the spectrum .
However , it showed a very hard photon index of \Gamma \sim 1.0 with no sign of deep absorption or a prominent spectral feature .
We further explored the Compton reflection with Fe K \alpha line and warm absorber models for hardening the spectra .
Both gave statistically satisfactory fits .
However , the Compton reflection model requires a very low metal abundance ( 0.03-0.07 in solar units ) .
The warm absorber model with no direct component is preferred and gave a very high ionization parameter \xi \sim 10 ^ { 2.3 } .
If this is the case , the values of \xi , warm absorber column density , and variability over \sim 10 years may suggest that the warm absorber resides in the broad-line region and crosses the line of sight to the central X-ray source .