Season 3 of Aggretsuko Got Dark! - The Fangirl Watches

Sanrio is known for cutesty cartoon characters, and Netflix is known for edgy content.  Put them together and you get Aggretsuko!  And, while I love this series, season 3 got insanely dark, featuring stalkers, trauma, and Haida still refusing to take the hint that Retsuko doesn't like him.