...what are you doing, Shigure?

Hmm... Seems pretty straightforward.

Stand on your toes.

Training?

It's an exercise called "Planking"! It's a way to train your core and abdominal muscles without much fuss!

Keep your balance by focusing on your abdomen and hips so that your back is straight and maintain balance.

Place both elbows directly under the shoulders.

If your elbows hurt, put down a cushion or towel.

Hnnnn....