Aggretsuko

Aggretsuko, also known as Aggressive Retsuko, is a Japanese anime series produced by Sanrio. The series follows the life of Retsuko, a red panda who works as an office associate in the accounting department of a trading company in Tokyo. Retsuko is very polite and diligent at work, but she vents her frustrations about her job and daily life by singing death metal songs in the office bathroom. The series explores themes of work-life balance, stress, and the challenges of modern working life.