Hiryu Rin is a student in Class 1-B at U.A. High School. Originally from China, he moved to Japan during elementary school, achieving fluency in Japanese and cultural adaptability. His hero name is Dragon Shroud.
Hiryu possesses lightly tanned skin and black hair worn in a shoulder-length braid. His eyes are distinctly reptilian in shape with miniature irises. He stands at 170 cm tall. His initial hero costume features a high-collared black bodysuit adorned with yellow cloud patterns, a red belt, brown pouches, yellow gauntlets, and a talisman-inspired visor displaying characters meaning "protection of life," drawing from traditional Chinese Jiangshi attire. His later costume adopts a blue-dominated color scheme. Key equipment includes Scale Gauntlets that store and fire scales rapidly, Scale Boots, and nutrient supplements essential for his Quirk.
His Quirk, Scales, allows him to generate durable reptilian scales from his skin for defense or projectile offense. The scales form armor, though sufficient force can penetrate it. Nutrient intake—specifically collagen and calcium—is critical for scale production, requiring him to carry supplements during combat. Techniques include Leafy Scales, firing scale volleys via gauntlets; Scales of Wrath, protruding scales outward as offensive spikes; and Inner Carapace, forming full-body scale armor.
His combat style blends close-quarters and ranged tactics, leveraging high accuracy for projectile strikes and reflexes for counterattacks. Statistical assessments rate him Power C, Speed C, Technique B, Wits A, and "Chinese Factor" A.
Hiryu exhibits a serious, diligent demeanor with strong attention to detail, making him reliable among peers. He strategically collaborates, notably during the U.A. Sports Festival obstacle course by proposing combined Quirk usage to clear wreckage. Academically focused, he deliberately adopts verbal tics like "Aiya!" for camaraderie. Personality typing suggests ESTP traits and Enneagram Type 8w8.
Key involvements include the U.A. Sports Festival, assisting in obstacle clearance and participating in subsequent rounds; the Forest Training Camp, present during preparatory activities; and the Joint Training Battle, where he detected Tsuyu Asui's camouflage but was overpowered by her leg strength, leading to a collision with Jurota Shishida that cost his team the match. He identified Denki Kaminari's tracking device on Shishida, urging caution. Post-graduation, he becomes a Pro Hero following the Final War.
Relationships include a bond with Pony Tsunotori as fellow foreign students and a reptile-themed association with Setsuna Tokage. He shares a thematic connection to the dragon-themed hero Ryukyu.
Trivia notes his costume's cultural flair, visor symbolism, supplement dependency, and the nuanced spelling of his name.