Examples of poststamp images in X-ray (0.5–7 keV), HSC/Subaru-g, and WIRCam/CFHT K_s as labeled. In each panel, the blue circle shows the X-ray source matching radius r_match (Sec. 3.1). The positions of the HSC-g and WIRCam K_s sources are indicated, respectively, by a green “+” and red “×.” The cyan circle shows the nominal position of the first ID (largest LR). See the description of the table column #11: ID_POS_REF. The numbers on the HSC-g and WIRCam K_s are the numbers for each source based on the distance from the X-ray source’s best-fit position. Full poststamp images are available online (^{footnote 7}).