Toei announced on Tuesday that its Toei Manga Matsuri omnibus film series will have another installment in August 2021, and it will once again include a new anime film, the third one, for the Butt Detective (Oshiri Tantei) franchise.
The omnibus films have screened anime shorts such as Mazinger Z Vs.
Toei screened the Toei Manga Matsuri film series from 1969 through 1990 during long break periods such as the summer or winter break to advertise its properties for children.
The 2019 installment of the omnibus film series was the first new one in 29 years, and it opened in Japan in April 2019.