Doma/Relationships

Akaza
During the Upper Kizuki Meeting, Doma approaches Akaza and nonchalantly asks if he was worried about him, claiming that he was worried about everyone since they were comrades. However his bubbly personality does not sit well with Akaza, and he proceeds to command him to move, before destroying part of Doma's jaw.

Akaza's hatred for Doma can also be seen when he loses his patience and destroys Doma's head, after he loiters around following the end of the meeting. Although Doma appears to adore Akaza, he tends to make snarky remarks such as mentioning that he became a Demon later than Akaza but managed to surpass him in ranks, seemingly trying to annoy him.

Later on during the battle within the Infinity Castle, Doma begins to tear up after hearing word of Akaza's passing, saying that he was his "best friend." However, Kanao is able to expose him saying that he does not feel any emotion and is simply acting, proving that Doma did not actually care for Akaza.

Kotoha Hashibira
Doma met Kotoha when she was 17 or 18 years old, on a cold snowy night. She came to him while carrying her baby, and pleaded for him to save them from her abusive husband and mother-in-law. As a result, Doma killed her pursuers, and accepted Kotoha and her baby into his temple.

Doma grew fond of her due to her beauty and singing ability, intending to keep her alive until she died of natural causes. However when she discovered that Doma was a Demon who was killing his followers, she ran from the temple to try to escape. Despite his fondness of her, Doma pursued Kotoha and murdered her in cold blood.

Inosuke Hashibira
After joining Kanao to assist in the fight against Doma, Inosuke becomes eager to defeat him so he can become a Hashira, leaving Doma intrigued by the new opponent. However once he discovers that Doma has killed one of his comrades, Inosuke becomes enraged and immediately rushes in to attack him.

Despite being immediately attacked by Inosuke, Doma becomes curious about him and manages to remove Inosuke's mask, mentioning that he recognizes his face. Although Inosuke refuses to acknowledge that he has met him before, Doma explores his memories and reveals that he met Inosuke when he was a child, and was responsible for killing his mother, causing Inosuke to fill with hatred and engage in combat with the Demon.

Shinobu Kocho
Prior to their meeting, Shinobu harbored an intense hatred for Doma since he was responsible for killing her sister. Upon confronting him within the Infinity Castle, Shinobu becomes disgusted by his calm, bubbly demeanor claiming that he makes her feel sick and angrily tells him that her sister was killed by him.

Doma adds insult to injury be recalling how displeased he was at not being able to eat Kanae, which causes Shinobu to stab intensely through the eye, initiating a fight. As Shinobu lives through her final moments, she becomes frustrated that Doma does not appear to be affected by her attacks and curses him to "go to hell!" before she is killed.

When they meet again the afterlife, Doma has a casual conversation with Shinobu, admiring her for stealthily poisoning him. Despite her hateful responses towards his comments, Doma comes to an unexpected realization by calling Shinobu cute and claiming that even though he "doesn't have a heart anymore, [he] feels like its beating" when he looks at her. Although he alludes to having romantic feelings for her, Shinobu stares at him and calls him a "worthless bastard" after he asks her to go to hell with him.

Kanao Tsuyuri
When the two originally meet Kanao is filled with hatred towards Doma for killing her loved ones, reacting with his usual exaggerated personality. However Kanao exposes his lies and makes fun of him for not being able to feel any emotion, which angers him.

The two openly express their disdain with each other with Doma referring to Kanao as "the first time [he's] talked to such an unkind girl", with Kanao expressing her desires to "cut off [his] head and send [him] to hell as quickly as possible, initiating a fight between the two.