The whiskey was drank by Keith, while he drowned his sorrows in alcohol, drugs, and gambling following his loss to Maximillion Pegasus at the United States The King of Duelists. He carried a bottle of whiskey as he wandered outside nightclubs, drank several bottles before nearly passing out on a counter in a bar, and had a bottle of it on a table while taking part in underground Duels. When Pegasus read Keith's mind during Duelist Kingdom, he saw memories of these events.
Differences from the manga
- The scene in the anime is based on a scene from the manga where Bandit Keith was drinking whiskey. Although the brand name was not mentioned in the manga.
- In the manga, Keith was drinking whiskey while gambling on a game of Russian roulette, rather than a game of Duel Monsters.
- The shots of the bar and nightclubs were added for the anime.