Seto Kaiba does not go to Starbucks. It's for peasants. Instead, he obviously has his own coffee machine, both at home and his office's kitchenette, which roasts, grinds and brews the special recipe that he meticulously selected with the best ingredients in the world:

-Crushed green cardamom seeds from Ceylon mixed with ground cinnamon sticks from Saigon and coarse ground arabica coffee beans (medium roast) from Ethiopia.

-Brew the mixture in a percolator.

-Extract, pour, add a couple of star anises and sprinkle with cocoa powder as a final touch.