Masako is the titular protagonist whose alter-ego is Big Breasts Buster in the film of almost the same name. Disguising herself as Big Breasts Buster, she takes down other girls by busting their breasts.
- Masako will meet Winnie the Pooh, Simba, Littlefoot, and the rest of their friends in the Big Breasts Buster segment featured in Pooh's Adventures of Scooby-Doo and the Ghoul School.
- Masako will meet Ash Ketchum, Scooby-Doo, Hiccup, Mario, and their friends in Ash Ketchum Meets Big Breasts Buster.
- Masako will guest star again in Winnie the Pooh Meets Moana.