Left: eROSITA X-ray image in the soft [0.5–2.0] keV energy band, smoothed with a Gaussian of σ = 8 arcsec. The solid green boxes represent the location of the region within which we look for emission from the filament connecting these clusters. Dashed green boxes represent the local background for spectral analysis. In order to minimize bias toward cosmic variance we repeat the analysis using the magenta box as an alternative background region. Right: color image of the galaxy density map at redshift of 0.36 from HSC. In both panels, we mark the location of the clusters detected by eROSITA with white circles, their size representing the estimated R₅₀₀.