Absolute J/[J – H] color-magnitude diagram of our identified Class II candidates in the R CrA region (blue circle) and the NIR-excess sources in the reference field (grey crosses). The green solid line and black arrow show the 1 Myr isochrone (Baraffe et al. 2015) and reddening vector of A_V = 5 mag, respectively. The grey dotted and dash-dotted lines are the reddening lines of the LMS/BD and BD/PMO boundaries, respectively, and the gray dashed lines indicate the completeness limit. The brightest candidates, T CrA and S CrA, are not shown in this figure for better visibility.