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We study hadronic molecular states in a coupled system of $J/\psi N -\Lambda_c\bar{D}^{(*)} - \Sigma_c^{(*)}\bar{D}^{(*)}$ in $I(J^P) =\frac{1}{2}(\frac{3}{2}^-)$ channel, using the complex scaling method combinedwith the Gaussian expansion method. We construct the potential including onepion exchange and one $D^{(*)}$ meson exchange with $S$-wave orbital angularmomentum. We find that the both mass and width of the pentaquark $P_c(4380)$can be reproduced within a reasonable parameter region, and that its main decaymode is $\Lambda_c\bar{D}^*$. We extend our analysis to a coupled system of$\Lambda_c D^{(*)} - \Sigma_c^{(*)}D^{(*)}$ in $I(J^P) =\frac{1}{2}(\frac{3}{2}^-)$ channel. We find that there exists a doubly charmedbaryon of $ccqq\bar{q}$ type as a hadronic molecule, the mass and width ofwhich are quite close to those of $P_c(4380)$.

Hidden Charm Pentaquark $P_c(4380)$ and Doubly Charmed Baryon $\Xi_{cc}^*(4380)$ as Hadronic Molecule States