In this study, we investigated the characteristic changes in the restoring force characteristics with magnetic flux pinning phenomenon caused by changing the boundary conditions between multiple high-temperature superconductors. The magnetic flux pinning characteristics were investigated when a gap was provided between the superconductors and when a step was provided between the superconductors. At this time, a permanent magnet with a magnetic flux focusing arrangement was used as the floating body. As a result, it was confirmed that the restoring force characteristics due to magnetic flux pinning are improved under specific conditions. This revealed the usefulness of adjusting the boundaries between superconductors.