Top panel: observed Ba abundances vs. Fe abundances for the 12 Draco stars. Our results are presented by dividing the stars into two groups: one with high-Ba abundance (﹩[\mathrm{Ba}/{\rm{H}}]\gt -2.2﹩; red circles) and the other with low-Ba abundance (﹩[\mathrm{Ba}/{\rm{H}}]\lt -2.7;﹩ blue circles). Bottom panel: observed Ba abundance extending to a lower-metallicity region of Draco, together with for the stars in Ret II (crosses; Ji et al. 2016). We include the previously reported results (Shetrone et al. 2001; Fulbright et al. 2004; Cohen & Huang 2009) for the Draco stars that share their [Fe/H] ratio with ours and the three stars with ﹩[\mathrm{Fe}/{\rm{H}}]\lt -2.5﹩. These data are indicated by black circles.