Rachael Pearson, a substitute teacher and community organizer from South Boston, has launched a challenge to Boston City Councilor Ed Flynn, according to WBUR.

The contest is for the council seat serving South Boston and Chinatown, along with portions of the South End. Pearson’s entry gives Flynn a challenger in a race that WBUR framed around the incumbent’s role as Mayor Michelle Wu’s most prominent critic.

Pearson brings a background in education and community organizing to the contest. Flynn currently represents the district on the Boston City Council.

WBUR reported the challenge Nov. 13. The available report identifies the candidate and the neighborhoods covered by the seat but does not detail Pearson’s campaign platform, provide a response from Flynn or specify an election date.