Sabito was a serious young man who believed that all of his actions should be becoming of a man. He was seen as a ruthless mentor during his time training Tanjiro Kamado, who was always quick to point out his flaws and refused to acknowledge him as a man. When asked about defeating the Hand Demon, Sabito appeared to have a pessimistic view on conflicts, saying he believed that no matter how hard someone tries it will never be enough to take the beast down.

Even so, Sabito entrusted his will to Tanjiro and was happy when he surpassed him as Sakonji's strongest student, openly acknowledging that Tanjiro was the toughest of them all and proudly leaving the lingering will of all Sakonji's lost children to him.

According to Sabito's best friend Giyu Tomioka, he was a very kind boy with a strong sense of justice, back when he was still alive. It is implied that Sabito was a selfless person, as seen in Giyu's flashback, when it is revealed he saved everyone in his group from the Hand Demon during his Final Selection, sacrificing himself in the process.