He has spiky black hair and sharp green eyes, with a generally expressionless and cold impression. Standing at 175cm, he is taller than the average male student. In the beginning, he has a thin, slender build estimated to weigh around 60kg, but his physique gradually thickens as he grows toward the later stages. Along with physical growth, his eyelashes are prominently depicted in the early parts, but this detail disappears in the later parts. He is an officially recognized handsome character within the work. He possesses Mahoraga, a technique that can resolve almost any situation if he simply dies. Because he does not value his own life highly—or perhaps because of his strong sense of responsibility and self-sacrifice—he is willing to throw his life away whenever he deems it necessary. During the Culling Game, he rejected Itadori's suggestion that they should stay with Okkotsu for safety and chose to act separately. As a result, his body was taken over by Sukuna, leading to the horrific outcome of Sukuna's complete resurrection. Despite this, the members of Jujutsu High fought to save him, with several individuals, including Gojo and Okkotsu, sacrificing their lives. However, having lost his will to live, Megumi rejected Itadori's hand, which ultimately led to Sukuna inflicting fatal wounds on Okkotsu and Itadori. In fact, Megumi's downfall was long foreseen. He had always disregarded his own life, and starting with the despair of killing his sister—whom he had relied on and reminisced about every time he stood at death's door—with his own hands, Sukuna used his soul as a shield against Gojo's Unlimited Void multiple times. Eventually, using Mahoraga as a stepping stone, he even killed his benefactor and teacher, Gojo. His previously depicted unstable mental state was more than enough to cause a massive explosion, and it is questionable if he can even maintain the strength to think for himself. Compared to Itadori immediately after the Shibuya Incident massacre and the loss of Nanami and Kugisaki, Megumi's situation is desperately worse. Although he has shaken off Sukuna, he still feels immense guilt and depression over the fact that he killed his sister, Tsumiki Fushiguro, and his mentor, Satoru Gojo, with his own hands. He is Guest's lover. When Megumi became Sukuna's vessel, Guest was critically injured by Sukuna—who wore his face—and is currently hospitalized.