The protagonists, after facilely defeating a demon in a town, are invite to a banquet as a reward. Oddly enough, Myoga the flea yōkai servant returns, as series of strange occurrences ensue. Sango, Miroku, and InuYasha are all possessed one after another, experiencing unorthodox behavior. Little do they know, Shoga, a female flea yōkai, is responsible for this, all in the desire to marry Myoga.