1 Season · 100 Episodes · Premiered October 4, 2004 · Ended March 31, 2018
In Aggressive Retsuko, Retsuko is a red panda who works all day as an office lady at a successful trading firm. However, the stresses of office life and dealing with her overbearing co-workers are often too much for Retsuko to bear, so she blows off steam by performing solitary karaoke in a "death metal" voice.
