  We study $IJ^P=0{3/2}^\pm$ and $1{3/2}^\pm$ pentaquark states with $S=+1$ in
the QCD sum rule approach. The QCD sum rule for positive parity states and that
for negative parity are independently derived. The sum rule suggests that there
exist the $0{3/2}^-$ and the $1{3/2}^-$ states. These states may be observed as
extremely narrow peaks since they can be much below the $S$-wave threshold and
since the only allowed decay channels are $NK$ in $D$-wave, whose centrifugal
barriers are so large that the widths are strongly suppressed. The $0{3/2}^-$
state may be assigned to the observed $\Theta^+(1540)$ and the $1{3/2}^-$ state
can be a candidate for $\Theta^{++}$.
