ISSHO NI TRAINING: TRAINING WITH HINAKO

"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. (Source: Anime News Network) — Description from AniList community (anilist.co).