The official Twitter account of the Aggressive Retsuko (Aggretsuko) net anime series announced a fourth anime season on Thursday.
TBS subsequently combined all 100 episodes and broadcast them in 10 episodes.
Pony Canyon released the anime in two DVD volumes in January and April 2017.
The first anime adaptation based on Sanrio’s titular red panda mascot aired in 100 one-minute episodes from April 2016 to March 2018 on TBS’ Ousama no Brunch program.