Sukuna Ryomen was born during the Heian Era, the Golden Age of Jujutsu. He is an undefeated human sorcerer also known as the Disgraced One, having felled countless other sorcerers that challenged him. Sukuna's true body is that of a tall, muscular man with four arms, four eyes, and a large mouth on his midriff. He has short pink-red hair and red eyes. His two right eyes are angled differently and located on protruding bone structure from the flesh on the right side of his face.[6] His body is covered in tattoos, which manifest on his vessel whenever he is in control. The tattoos are mostly black lines on his wrists, ankles, upper arms, upper body, abdomen, and face. Large black dots are also tattooed on each his shoulders. When these tattoos manifest on a vessel with two arms, the lines encircling the upper arms and wrists are doubled, and circles form around the black dots on the shoulders. The vessels also gain a horizontal line on the bridge of the nose, and a crown-like symbol in the middle of their forehead. Sukuna wears a white kimono with a black edge, a black scarf, and black sandals. Sukuna is egocentric, hedonistic, psychopathic, exceptionally sadistic and selfish. Mass murder, suffering, and the screams of his victims are what the King of Curses relishes; this is best shown when he was reincarnated shortly after Yuji ingested his finger, after which he commented, implying the slaughter of women and children and likening them to maggots crawling around. Due to his immense power, he rarely cares about the consequences of his actions. Outwardly, Sukuna claims to have no dreams, goals, or aspirations to work towards, while the jujutsu sorcerers fighting him do and grow stronger because of it. However, on one occasion, Sukuna has alluded to feelings of resentment from his upbringing. Sukuna is an immense glutton, not only for actual food and human flesh, but for fighting and bloodshed. Because of this, he tends to draw out his fights with strong opponents even if it would be wise to finish up his fights quickly. Sukuna is aware of his immense power and is arrogant about it, for this reason, he is highly dismissive of his opponents and rarely takes them seriously. He has also displayed the ability to acknowledge and praise his opponents on multiple occasions. In rare cases, Sukuna is capable of forming non-combative relationships. Sukuna espouses that he likens human beings to insects and admits he is unable to comprehend why the weak cling so desperately to life instead of quietly accepting the suffering that life forces them to endure since the weak should have no right to complain. He also claims that he doesn't understand how a creature that falls apart at a touch can say that it always wants to be happy, which expresses his antipathy and disregard of human emotions and their will to live. Sukuna's perception of life adheres strongly to social darwinism. It is repeatedly stated that Sukuna has a myopic view on love and does not fully comprehend the value of relationships. Though he claims to understand love, Sukuna considers it worthless and abhors the idea of needing another individual to satisfy him. Stemming from this mindset, Sukuna is enraged by anyone pitying him or offering him mercy, as he bases his identity on being the strongest and views such acts as considering him weak. However Sukuna's perception of life is rooted in some hypocrisy.