余光

(out of) the corner of one's eyes / peripheral vision / residual light / light of the setting sun

surname Yu

(archaic) I / me / variant of 餘|余[yu2], surplus

extra / surplus / remaining / remainder after division / (following numerical value) or more / in excess of (some number) / residue (math.) / after / I / me

light / ray / CL:道[dao4] / bright / only / merely / to use up