Strong Zero is a brand of chuuhai (an alcoholic beverage) produced by Suntory. It comes in many different fruit flavors.
A chuuhai (γγ₯γΌγγ€ or ι γγ€, short for "shouchuu highball") is a mix of shouchuu with carbonated water and fruit flavoring.
Virtual YouTuber Kaguya Luna is a fan of the drink.