The Waifu Rater is a scientist who works to help anime and gaming enthusiasts rate their favorite female characters for their "waifu" qualities. With his extensive knowledge in the field of waifuology, the Waifu Rater is able to analyze a character's personality, physical appearance, and compatibility to give them a waifu rating on a scale from 0 to 100. His ratings are mostly unbiased and impartial.