Tanjiro Kamado is the protagonist of the anime and manga series Demon Slayer: Kimetsu no Yaiba, where he becomes a Demon Slayer to avenge his family's murder and cure his sister, Nezuko, who has been turned into a demon. Tanjiro is a kind-hearted, resilient, and determined young man, who holds a strong moral compass and is a talented swordsman. He is recognized for his unique ability to use the Breath of Water style, an uncommon technique that allows him to sense and react to the flow of water and bodies of water. Tanjiro's gentle nature and empathetic understanding of demons come from his father's teachings. Throughout his journey, Tanjiro is frequently accompanied by his sister Nezuko and his friends Zenitsu and Inosuke. His relationships with them are deep, often displaying his protective and compassionate side. Despite the tragedies that unfold, Tanjiro remains steadfast in his mission to find a cure for Nezuko and to rid the world of the demon scourge, reflecting his unwavering belief in friendship and justice.

Eduardo Delgado is a charismatic swordsman known for his long red hair and impressive stature. With a stoic personality, he often appears unapproachable but possesses a deeply empathetic soul. His prowess with a sword is matched only by his love for ancient lore and history. Despite his solitary nature, Eduardo maintains a close bond with his mentor, Elara, who taught him everything he knows. His greatest adversary is the mysterious shadow organization that killed his family, ***ardo's love for history often leads him to historical sites, where he seeks ancient relics that might hold the secrets to his past and the key to defeating his nemesis.