X-ray spectra around ∼7.0 Å (or ∼1.77 keV) for EPIC/pn (100 ks, left), XRISM/Resolve (100 ks, middle), and Athena/X-IFU (50 ks, right). Data are shown in black with 1σ uncertainties shown in gray. Absorption lines from Si VI to Si XII and Mg XI are highlighted with vertical dashed lines in green. Three sets of models with different ionization parameters for the X-ray obscurer are shown: log ξ = −1.0 in orange and dashed lines, log ξ = 0.5 in blue and solid lines, log ξ = 2.0 in purple and dashed lines, respectively. Deviation (in percentage) among the three models is shown in the upper panels.