Relation between sBHAR (=L_AGN,bol/M_⋆ erg s) and M_⋆. The gray cross represents the typical error bar of the two values. The orange shaded area represents the region of super-Eddington λ_Edd > 1. The three straight lines (from top to bottom) are the expected Eddington ratio of λ_Edd = 1 (Eddington limit; black solid line), λ_Edd = 0.01 (black dashed line), and λ_Edd = 10⁻⁴ (black dot-dashed line) using Eq. (7). The pale pink stars in the background represent the sources from the original WERGS sample with IR detections (KI+21; Ichikawa et al. 2021). The other symbols are the same as in Fig. 1.