Parameter marginalized posteriors (diagonal) and two-dimensional joint posteriors (off-diagonal) from different modelling are presented. The results of the weak-lensing mass calibration alone are shown as the blue contours, while the inclusions of the modelling of the M_⋆, BCG–M–z relation are indicated by the red contours. We also indicate the results from Kleinebreil et al. (2025), based on the identical cluster sample and the weak-lensing data g₊, as the green contours.