Nicotine Caffeine is one of the minor protagonists in Samurai Shodown.
Nicotine is the chief priest of Koka-in (a pun "Cocaine"), a temple deep in the Hida Mountains, and a former master swordsman who teaches Haohmaru and Genjuro Kibagami.
Nicotine used to exorcised the most demons during his heyday and met Mizuki Rashojin thirty years before the start of the second game. He must leave his temple to save his disciples from Mizuki and leave a solid seal on her. At the end of the game, Nicotine was successful, but she was relieved if she accidentally.
In spite of being a wise elder, Nicotine takes life lightly. He has an enormous heart and is often seen smiling, even when fighting.