N/C vs. N/O abundances of the stripped star (yellow star) compared to SMC B stars (triangles for giants and crosses for main sequence) from Hunter et al. (2009). The dashed lines are tracks from Brott et al. (2011) for the SMC with different initial rotations for M_ini = 12. The location of the stripped star at the top right corner demonstrates that its surface CNO pattern is too extreme to be explained by standard stellar evolution.