Fumikage Tokoyami trains as a Pro Hero under the alias Tsukuyomi within U.A. High School's Class 1-A. His striking appearance features a raven-headed visage with black feathers, a tan-yellow beak, and thin red eyes atop a human body of fair skin. He typically wears a dark choker and a black-purple tinted cloak, knee-high boots, a utility belt, and wristbands. Intensive training with Hawks builds his physique, while an encounter with Dabi during the Paranormal Liberation War leaves a scar on his left foot. By his graduation and rise to the No. 17 Pro Hero rank, he adopts a taller stature with scruffier, graying feathers, adding rings and wrist chains to his look. Reserved and serious, Tokoyami speaks in dramatic, archaic tones, embracing dark themes and calling himself a "creature of the dark." He possesses nobility, humility, and a powerful sense of responsibility, often avoiding casual interaction yet proving highly sociable and cooperative within teams, particularly alongside allies like Tsuyu Asui. He harbors insecurity about his interests, fearing others find them unsettling. Emotionally invested in his mentors and peers, threats to them provoke intense anger or protectiveness. This volatility can destabilize his Quirk. He remains acutely aware of his limitations, diligently working to improve weaknesses such as close-range combat and Quirk control. His Quirk, Dark Shadow, manifests a sentient, shadowy guardian from his body. This entity communicates telepathically with Tokoyami and serves for offense, defense, mobility, and rescue. Dark Shadow's size, strength, and controllability fluctuate dramatically with light: smaller, weaker, and docile in brightness, but larger, immensely powerful, and prone to uncontrollable aggression in darkness. Negative emotions like anger or fear amplify this instability, risking Dark Shadow overpowering commands. The Quirk drains energy over time or when extended far, requiring darkness to recharge. Key techniques include **Black Abyss** (Dark Shadow envelops Tokoyami as armor), **Black Fallen Angel** (aerial carrying for flight simulation), **Ragnarök** (high-output independent manifestation), and **Total Release** (colossal transformation using environmental darkness). Other moves encompass Piercing Twilight Claws, Covert Black-Ops Arms, and the defensive Light of Baldur. Tokoyami consistently demonstrates strategic and combat prowess, ranking ninth in the U.A. Entrance Exam, fifth in the Quirk Apprehension Test, and third in the U.A. Sports Festival. He defeats recommended student Momo Yaoyorozu and contends fiercely with Katsuki Bakugo despite Quirk disadvantages. His internship with Hawks hones speed, mobility, and extending Dark Shadow's range, though excessive use accelerates energy drain. During the Paranormal Liberation War, he assaults Gunga Mountain Villa and rescues Hawks from Dabi, sustaining injuries. In the Final War against All For One, his crucial contributions, including shattering All For One's helmet, earn recognition as a frontline asset. On the Nabu Island mission (*My Hero Academia the Movie: Heroes Rising*), Tokoyami employs Black Fallen Angel to swiftly rescue Mashirao Ojiro from Chimera. Paired with Mina Ashido against Slice, he initially defends against her agility before overwhelming her with Dark Shadow. Ashido's injury triggers a near-loss of control, leading to Slice's defeat and a cave collapse, highlighting his speed and coordination gains alongside persistent vulnerabilities tied to emotion. Tokoyami's journey evolves from a U.A. student to the No. 17 Pro Hero, overcoming personal and Quirk challenges through discipline and mentorship. His abilities draw praise from All Might and Hawks, who notes his potential to excel among the top heroes. His legacy centers on mastering Dark Shadow's power while achieving emotional control, proven in high-stakes conflicts like the Final War and Nabu Island.