The reason is

Mom can't stop sneezing this early spring season because of hay fever.😫

Dad has bought an air purifier to soften her symptoms. 

So, the air purifier has come to our home.😀

What's this? Xiang?

The machine purifies the atmosphere of our room.

Ah, I see.

What?

The motor's sound of the purifier became loud because it has started to work hard.

When Ling is close to it, the purifier works hard for some reason. 

Why does it work hard? Xiang?

Let me see.

But, when I am close to it, it is silence. Ling.

Well. 

Turn to me? Ling!

Aha, I get it.

Where have you played? 😒

Original blog: in Japanese.