Zoom-in 1D + 2D prism spectra of ID10646 (left) and ID20466 (right). The magenta vertical line and dashed curve indicate the expected Lyα line wavelength and the best-fit spline model using msaexp based on z _line, respectively. Blueward of the Lyα continuum or line is clearly detected in both sources. The red curve in ID10646 represents our best-fit IGM absorbed model with an ionized bubble, yielding a best-fit R _p value of 7.69 ± 0.18 pMpc. The red vertical line corresponds to the expected wavelength of the Lyα line based on the redshift of the ionization front of the ionized bubble along the line of sight. Because of the lack of the blueward Lyα continuum and the difficulty in modeling the intrinsic Lyα line profile in ID20466, we perform the R _p measurement only for ID10466. For reference, the red dashed vertical line in ID20466 is drawn at the same wavelength as the red vertical line in the left panel.