Turn off your sign

Hi Xiang, What play will we do today?

Well,

Dad has many online meetings today. So we should not make a noise.

Aha, let's play Ninja today! 😃💡

Ling, Look!

I'm turning off any signs and on the wall. Anyone shouldn't notice us.

This is one of the austere Ninja training.

Ling, please follow me.

Xiang, what is the gist of this training?

It trains our minds. To train your mind, you must keep staying without a move.

Yes, Xiang! I train myself with this training.🎶

Xiang, am I turning off my sign? Isn't the black part of my body conspicuous?😐

Shush, Ling!😠

Original blog: in Japanese.