Where to find Ayataka green tea in a Asian grocery store around the city?

The reason I'm asking is me and my mother have been watching a Japanese YouTuber named "Rambalac" who always purchases that specific tea from vending machines while walking around various places in Japan and promoting it on his channel and we want to find the exact tea he always drinks to see what it tastes like out of curiosity.

Is there any places in Houston specifically an Asian grocery store that sells Ayataka green tea? Note it also has a blue teapot on the cover of the drink too also they have a partnership with Coca-Cola with being always sold in a Coca-Cola vending machine in Japan and also they have a label on the back of the bottle cover.