According to the bottom, the cloud has no abdominal muscles. Isn't this abdominal muscle? It is the most perfect 1 1 abdominal muscle for girls. Many members had abdominal muscles when they were young.

Especially Yuri.

I don't know how Yuner practices, but I know how Yuri practices. Yuri does 500 sit-ups every day.

Regular exercise-a reasonable diet is enough. Yuner is born thin, with obvious abdominal muscles, so he doesn't need to practice. ?