  Recently one of the authors proposed a dual theory of a Supersymmetric
Standard Model (SSM), in which it is naturally understood that at least one
quark (the top quark) should be heavy, i.e., almost the same order as the weak
scale, and the supersymmetric Higgs mass parameter $\mu$ can naturally be
expected to be small. Unfortunately, the model cannot possess Yukawa couplings
of lepton sector. In this paper, we examine a dual theory of a Supersymmetric
Standard Model without R parity. In this scenario, we can introduce Yukawa
couplings of lepton sector. In order to induce the enough large Yukawa
couplings of leptons, we must introduce fairly large R parity breaking terms,
which may be observed in the near future.
