1. Introduction
2. Multi-wavelength data, their analysis, and reduction
2.1. eROSITA Imaging analysis
2.2. Hyper Suprime-Cam optical data
2.3. Radio observations
3. A supercluster discovered in the eFEDS field
4. X-ray and optical properties of the supercluster
4.1. Integrated properties of the members of the supercluster
4.2. X-ray dynamical properties of the members of the supercluster
4.3. Surface brightness profiles in sectors
4.4. X-ray properties of the plasma emission in between the clusters
5. Radio emission from the merging clusters eFEDS J09351  $\mathbf{3.3+004746}$ and eFEDS J093510.7+004910
6. Discussion and Conclusions