Aggretsuko – Season 1 (2018)

Frustrated with her thankless office job, Retsuko the Red Panda copes with her daily struggles by belting out death metal karaoke after work. As Retsuko enters her fifth year at a prestigious trading firm, she struggles to motivate herself everyday as the daily stress from work takes a toll.

https://www.imdb.com/title/tt8019444/