The demon slayers in the popular anime and manga series "Demon Slayer: Kimetsu no Yaiba" follow a strict code of conduct known as the "Demon Slayer Corps' Laws and Regulations." This code includes principles such as protecting humanity from demons, respecting fellow demon slayers, following orders from superiors, and prioritizing the mission above personal interests. Additionally, demon slayers are expected to adhere to a set of ethical guidelines that emphasize courage, loyalty, and selflessness in the face of danger.