Mass map for the J141507.1-002905 and J141457.8-00205 field (30′×30′). The black contours represent the reconstructed WL mass map spaced in units of 1σ bootstrapping error. The diameter of the black circle in the lower left corner represents the Gaussian smoothing FWHM = 400 kpc in the mass reconstruction. Blacked-out areas are the masked regions of bright stars. The blue + and × are positions of J141507.1-002905 and J141457.8-00205, respectively. The system is MCXC J1415.2-0030 (Piffaretti et al. 2011). The blue and cyan contours are the eRASS1 and XMM-Newton X-ray contours (Miyaoka et al. 2018), respectively. An X-ray bright point source in the western component is removed in the XMM-Newton contours. It was properly identified when the eRASS1 cluster catalog was constructed. At the same time, diffuse X-ray emission in the XMM-Newton image appeared even after removing the X-ray point source thanks to a higher angular resolution. The system is composed of three components with S/N ∼ 6.7σ for J141457.8-00205, ∼4.7σ for J141507.1-002905, and ∼5.3σ for the western component.