I am currently interested in 3d supersymmetric, topological theories, and mathematical physics of 3-manifold via 3d-3d correspondence. In particular, relations between boundary VOA of topologically twisted theories with 8 supercharges, and various limits of SCFTs, and 3d-3d correspondences of 3-manifold with boundaries. In addition, I am also interested in black holes in string theory and their holography.