Aggressive Retsuko (アグレッシブ烈子, Aguresshibu Retsuko), or Aggretsuko for short, is a Japanese anime musical comedy franchise based on the eponymous character created by "Yeti" for the mascot company Sanrio.
The character first appeared in a series of animated shorts by Fanworks which aired on TBS Television between April 2016 and March 2018.
An original net animation (ONA) anime series adaptation was launched worldwide on Netflix in April 2018. A second season premiered in June 2019 with a third season in production renewed the series for a third season.
Courtesy of Oni Press, a comic book series is currently in production by Daniel Barnes and D.J. Kirkland.
Retsuko is a 25-year old and single anthropomorphic red panda, who works in the accounting department of a Japanese trading firm. Facing constant frustration every day from pushy superiors and annoying co-workers, Retsuko lets out her emotions by going to a karaoke bar every night and singing death metal. After five years of working the daily grind, Retsuko's unhappiness causes her to undergo a series of events that puts her job in jeopardy, forcing her to shift her relationships with her co-workers and ends up changing her life in unexpected ways. She then turns to marriage as a way to get out of work.