A bottle of liquor with two different alcoholic contents. The square-shaped bottle contains 52% alcohol while the circular one 25%. Inspired by the Chinese belief " the heaven is round and the earth is square ", every package has two bottles of liquor in it. The bottle with low alcoholic content is packed outside and the one with high alcoholic content inside.
During the party, you can choose the bottle outside if you're a mild drinker; if you're a strong drinker, you can choose the bottle inside. Whichever your choice might be, never will your friendships be impaired.