
"First muscle training animation ever," a 16-year-old girl named Hinako leads exercises in push-ups, sit-ups, and squats. Hinako was once a human, but she was turned into an anime character when she was a second-year middle-school student.
Streaming availability for US region, via JustWatch.

BLAME!
2017

Short Peace
2013

Yu Yu Hakusho: Eizou Hakusho
1994

Fighting Spirit - Mashiba vs. Kimura
2003

Girls und Panzer der Film
2015

Doraemon: Nobita and the Windmasters
2003

Genius Party Beyond
2008

Fighting Spirit: Champion Road
2003

Captain Tsubasa Movie 04: The Great World Competition!! The Junior World Cup
1986

Pokémon the Movie: Genesect and the Legend Awakened
2013