Aggretsuko, short for 'Aggressive Retsuko,' is a Japanese anime character created by Sanrio who perfectly captures the dichotomy of modern adult life. By day, Retsuko is a mild-mannered 25-year-old red panda working a thankless accounting job; by night, she vents her overwhelming stress by singing death metal at a local karaoke bar. The meme typically highlights the contrast between her polite exterior and her explosive, face-painted 'rage mode.' It has become a universal symbol for corporate burnout, social anxiety, and the repressed anger that comes with navigating a soul-crushing career. Whether it's dealing with a toxic boss or everyday inconveniences, Aggretsuko provides the perfect visual language for anyone who feels like they are one email away from a heavy metal breakdown.