Shihai Kuroiro, hero name Vantablack, attends U.A. High School's Class 1-B and hails from Fukushima Prefecture. His Quirk, "Black," allows him to merge with and traverse any dark-colored substance or shadow, manipulating normally mobile entities. This merger grants heightened speed for rapid movement through environments like industrial pipes, enabling ambushes. He can transport others while merged, as seen capturing opponents in training. During the Joint Training Battle, he notably merged with Fumikage Tokoyami's Dark Shadow, briefly turning it against its user, though this control remains temporary and limited to independently mobile entities. His Ultimate Move, "Darkseek," involves stealthy shadow navigation to capture targets. Physically, Shihai possesses pitch-black skin, fluffy white hair, and thin black eyes, standing 176 cm tall. His hero costume features a high-collared black jumpsuit, light-colored boots with dark collars, and large silver wristbands bearing rectangular indentations, designed for camouflage in darkness. Shihai exhibits a sly, strategic personality, employing psychological tactics and dramatic chuunibyou-esque speech. He views Tokoyami as a kindred spirit due to their darkness-themed Quirks. Despite his combat calculation, he displays social awkwardness around girls, often misinterpreting friendliness as romantic interest. He harbors a long-standing crush on classmate Kinoko Komori, frequently stammering or averting his gaze around her and reacting jealously to her interactions with others like Juzo Honenuki or Tokoyami. This dynamic evolves post-graduation, leading to a romantic relationship with Kinoko as Pro Heroes. His early appearances include the U.A. Sports Festival, participating in the obstacle race (placing 30th) and the cavalry battle on Neito Monoma's team. Significant development occurs during the Joint Training Arc, where he exploits Tokoyami's targeting focus. Using Ground Gamma's terrain, he executed ambushes, captured Yuga Aoyama, and controlled Dark Shadow, contributing to Class 1-B's match two victory. He later appears in background roles during the Forest Training Camp and Paranormal Liberation War, aiding evacuations and confronting villains. Post-graduation, he operates as the "Scheming Hero: Vantablack," referencing the light-absorbing material. Trivia includes his November 1 birthday, blood type A, favorite food squid ink pasta, and a name incorporating kanji for "black," "color," and "domination." Ultra Analysis Book stats prioritize Speed (4/6) and Technique (5/6), reflecting his stealth combat style.