Season 1 Netflix, 2018 Watch now Frustrated with her thankless office job, Retsuko the Red Panda copes with her daily struggles by belting out death metal karaoke after work. Season 2 Netflix, 2019 Watch now From her mother meddling in her personal affairs to a nightmarish new coworker, Retsuko's still got a lot to rage about in her karaoke sessions. Season 3 Netflix, 2020 Watch now Season 4 Netflix, 2021 Watch now Season 5 Netflix, 2023 Watch now In this final season, Retsuko faces her biggest challenge yet when she's thrown head first into the world of politics. Get out the vote for Retsuko!