Sakonji Urokodaki

Sakonji Urokodaki (鱗滝 左近次 Urokodaki Sakonji?) is a Cultivator of Swordsmen in the service of the Demon Slaying Corps. He was also formerly a Demon Slayer, having held a position as a Water Pillar. Urokodaki's face has never been revealed or depicted; he is always seen wearing a tengu mask which covers his face. He appears to be an elderly individual as noted by the countless number of students he's trained as well as his silver colored hair.He is always seen wearing a jinbei styled kimono with a hood covering his head whenever he is travelling. Breath of Water Style (水の呼吸 Mizu no kokyū?): Sakonji is the primary instructor of this Breath Style. He has taught ten breath techniques to both Tanjiro Kamado and the successor of his former position as Water Pillar, Giyu Tomioka. The user can increase the amount of oxygen in one's blood by controlling their breathing pattern. Doing this increases his strength and agility to equal a Demon's. It is currently unknown what is his level of skill while utilizing this style, but it can be assumed that he was a formidable swordsman as a former pillar. Sakonji was ranked in 14th place as of the first character popularity poll with 213 votes.

It is said by Giyu in his letter to Sakonji that he has an enhanced sense of smell like Tanjiro. Having received a letter from Giyu Tomioka requesting that he train Tanjiro Kamado, which also explained the boy and his sister's circumstances, Sakonji set forth from his home to find the two. Upon finding them, he stops Tanjiro from attempting to kill a Demon with his knife, stating that the boy will be unable to kill the creature with such a blunt weapon. Admonishing the youth for his question of how to properly defeat the beast, the elder watches as Tanjiro struggles to come up with a way to dispatch the creature. Sniffing the youth, Sakonji determines that he is no good, as he still has the scent of kindness even when confronted by vile demons. While Tanjiro is still struggling to kill the demon, Sakonji buries the victims of the creature, afterwards kneeling by their graves with his hands together in prayer. He then introduces himself to the youth, asking if he is the one Giyu spoke of in his letter. Getting an affirmation to his inquiry, Sakonji goes on to ask the boy what he will do if his sister decides to feast on a human, slapping him when he hesitates to answer. He admonishes the youth on his slowness to answer, stating that he lacks determination, and stresses that he must not allow his sister to harm another human under any circumstance.