Upper limit of Γ_*, 10 − M_*, 10 relation evolution in ζ_μ − ζ_β space. The filled gray contour represents the estimate of the allowed evolution in the slope and normalization of the Γ_*, 10 − M_*, 10 relation. The star symbol indicates the prediction of ξ = 0.2 (in pink), ξ = 0.5 (in orange), and ξ = 1 (in blue) mergers, with merger numbers obtained from Moster et al. (2018). The arrows indicate the direction in which ζ_μ and ζ_β would evolve if the number of merger events increases. We also include mass growth estimates, specifically $f_{\mathrm{M}}^{\mathrm{major}}$ and $f_{\mathrm{M}}^{\mathrm{minor}}$, from Conselice et al. (2022). The combined evolution of Γ_*, 10 − M_*, 10 relation from both major and minor mergers is shown with a green error bar.