Redshift evolution of total stellar mass contained in red member galaxies, for three sets of clusters whose z = 0.3 masses lie in the ranges ﹩\mathrm{log}{M}_{200m}/({h}^{-1}\,{M}_{\odot })=14.2-14.4﹩ (blue squares), 14.4–14.6 (green triangles), and ≥14.6 (red solid points). For each set, the points from lower left to upper right show how M_star,tot evolves with redshift. In other words, the x-axis not only shows the cluster mass, but can also be regarded as the arrow of time (for a given cluster set). The offset of three sets of data points reflects the true halo masses derived from the merger trees (i.e., not artificially adjusted for clarity of presentation).