Aran Ojiro is a third-year student at Inarizaki High School and the wing spiker who holds the ace position on its volleyball team. Ranked among Japan's top five high school aces, commentators note that at his peak he rivals the nation's top three spikers. He wears jersey number 4 and occasionally steps in as court captain when regular captain Shinsuke Kita is absent. His volleyball journey began in elementary school, where he first encountered the Miya twins, Atsumu and Osamu, at a workshop; he overheard their curiosity about his foreign-sounding name, which sparked their enduring relationship. Aran is of mixed Japanese and Korean descent, implied by his name and a reference to speaking Korean with his sister. In high school he stands 184.7 cm tall and weighs 80.2 kg, with a tall, muscular build, dark-brown clean-cut hair, thick eyebrows, and almond-shaped eyes with distinctive foxlike pupils. After the timeskip he grows slightly taller to 186.6 cm and 88.5 kg and sports a short goatee. Mature and levelheaded, Aran often plays the straight man to his teammates’ antics, countering with sharp wit while occasionally showing exasperation. He believes emotions like happiness need no logical justification, a view he shares to reassure Kita about leadership. Though generally calm, he can become intensely fired up during matches, sometimes rushing plays or overpowering attacks, but regains composure swiftly. He references older media like Sazae-san, has a self-deprecating habit of wearing hole-ridden clothing, and misses the twins’ humor after graduation. Personality analyses categorize him as an ESFP and Enneagram Type 8w9, highlighting his assertiveness, competitiveness, and struggles with vulnerability. On the court, Aran is renowned for exceptional power and jumping ability. His high school stats give maximum scores for power (5/5) and spike (10/10), with a lower speed rating (2/5), and his spiking reach of 345 cm consistently challenges triple blocks. He takes pride in excelling at both offense and defense, believing an ace must be versatile, and unlike some top aces he participates in serve receives while adapting to float serves after initial struggles. His powerful jump serve can land no-touch aces but falters when overexcited. During the Tokyo Nationals Arc, he leads Inarizaki as court captain against Karasuno, overcoming strategic serves aimed at exhausting his stamina and delivering consecutive powerful spikes, though Inarizaki loses the match. After high school, Aran joins the Division 1 V.League team Tachibana Red Falcons as an outside hitter, becoming a promotional face for the team. He later earns a spot on Japan’s National Volleyball Team for the 2021 Olympics, where he is seen reprimanding Atsumu during a televised match, and participates in an All Stars match. A spin-off chapter titled Aran Ojiro Goes to the Louvre exists. His close friendship with Kita involves efforts to help Kita embrace emotions freely, and his history with the Miya twins gives him unique insight into their personalities, leading him to frequently mediate or react to their disputes. His birthday is April 4, making him an Aries, and his favorite crackers are Ritz.