The upcoming summer 2020 TV anime Kanojo, Okarishimasu or Rent-A-Girlfriend has announced on their official twitter account that the series will have a total of 12 Episodes.
The new TV anime will premiere on July 10, 2020, and will be animated by TMS Entertainment who also animated the anime ReLIFE, Dr. Stone, Orange, and Yowamushi Pedal.
Source: Kanojo, Okarishimasu Official Japanese Twitter