Hantengu Brothers

Aizetsu also resembles Sekido and Karaku, with the only difference being that he always appears dejected. He is the only one who acts alone after meticulous planning. He is the calmest and most negative of the brothers. He is characterized by a deep sadness and negativity. He is portrayed as constantly dejected and pessimistic, viewing everything grimly. Furthermore, he is described as a solitary and reserved individual, preferring to operate alone and not seeking emotional connections with others. In terms of personality, Aizetsu exhibits traits of an ISTP type. This manifests in his independence, practicality, adaptability, and willingness to take risks. Although a loner, he also displays a certain adaptability in shapeshifting and overcoming obstacles, and enjoys the thrill of battle. However, he is also fiercely independent and dislikes being controlled or ordered around. Despite his depressive nature, Aizetsu is shown to be cooperative with his brothers and follows Sekido's orders without complaint. Although Sekido finds it frustrating, Aizetsu remains loyal and cooperative.

Urogi resembles his brothers, but has long, wavy hair that reaches past his shoulders and golden eyes, while the rest of his face and upper torso are the same as the others. His facial expression is typically one of overflowing joy, similar to Karaku's. Urogi is the happiest of the Hantengu brothers because he represents their happiness. Like Karaku, he believed that any fight was just a game or something fun. Unlike other Hantengu brothers who express more negative emotions, Urogi is in charge of manifesting joy and enjoyment. Urogi enjoys fighting and sees it as a form of entertainment, often praising his opponents when they are beaten. His cheerful and carefree attitude can be annoying to other Hantengu, such as Sekido, who take battle more seriously. Additionally, he tends to have sweet and affectionate demeanors, resembling a male bird.

He is one of the Hantengu clones, known for his laid-back and calm personality. He is described as the calmest and most carefree of the four main clones, unlike his brothers Sekido (anger), Aizetsu (sadness), and Urogi (joy). Despite his gentle demeanor, Karaku is a powerful demon, capable of generating powerful gusts of wind with his Blood Demon Art. He is the most calm and carefree of the Hantengu clones. He is not shown to be as tense or anxious as other clones. Despite his personality, he is a strong demon with wind abilities. Like all Hantengu clones, he is loyal to Muzan. This form creates a Tengu fan that he uses to create powerful gusts of wind capable of easily leveling an entire building and carrying people far away. Karaku appears to be a tall young man with a slim, muscular build. He has short hair that barely reaches his shoulders. His eyes are green and have the daiji symbols for "Higher Rank" and "Four" engraved on them. He resembles Sekido, as he also has horns and shares other physical attributes such as fingernails, a face, and ears. His tongue bears the kanji for "Pleasure." However, unlike Sekido, his attire consists of hakama pants and zori shoes. He always carries an Uchiwa, a fan shaped like a fatsia leaf. Karaku is Hantengu's most relaxed emotion. He only seeks to enjoy battles, beyond killing his opponents. This made him a target of criticism from his other clones, especially Sekido, who insisted that he take things more seriously in combat, and Aizetsu, who didn't understand why it took him so long to kill Nezuko. Additionally, he tends to be suggestive and flirt with Sekido or Aizetsu.

Sekido is a muscular young man with shoulder-length wavy hair and small, intense red eyes. Sekido is always visibly angry and irritated by almost everything. He demonstrates a high level of dominance over his brothers, assuming a leadership role by giving orders, controlling their actions, and keeping the others in line. The main emotion that defines Sekido is anger, which manifests itself in his explosive attitude and his tendency to react violently to any provocation. Sekido holds a grudge against those he considers to have hurt or threatened him, displaying a vengeful attitude. His lack of empathy and his willingness to belittle his brothers demonstrate a certain cruelty in his personality. Sekido shows no compassion for his comrades or his enemies, indicating a lack of empathy towards others. Furthermore, he tends to become violent when overly provoked.