  The Lefschetz thimble method, i.e., the integration along the steepest
descent cycles, is an idea to evade the sign problem by complexifying the
theory. We discuss that such steepest descent cycles can be identified as
ground-state wave-functions of a supersymmetric Hamilton dynamics, which is
described with a framework akin to the complex Langevin method. We numerically
construct the wave-functions on a grid using a toy model and confirm their
well-localized behavior.
