Aran Ojiro is a third-year student at Inarizaki High School and the wing spiker who holds the ace position on its volleyball team. His volleyball journey began early, first encountering the Miya twins, Atsumu and Osamu, at an elementary school workshop where he overheard their initial curiosity about his foreign-sounding name. This moment sparked their enduring relationship, with Aran witnessing the twins' competitive dynamic unfold over the years. His mixed Korean and Japanese heritage is implied by his name and a reference to speaking Korean with his sister. Aran possesses a dark-brown clean-cut hairstyle, thick eyebrows, and an athletic physique. His eyes are almond-shaped with distinctive foxlike pupils, portrayed as gold/brown in the manga and greyish-green in the anime. After the timeskip, he stands slightly taller and sports a short goatee. Balancing maturity with occasional exasperation towards his teammates' antics, Aran often serves as the "straight man" in comedic situations. He believes emotions like happiness need no logical justification, advising teammate Shinsuke Kita accordingly. Generally levelheaded, Aran can become intensely fired up during matches, sometimes rushing plays or overpowering attacks, though he regains composure swiftly. He occasionally references older media like *Sazae-san*. Personality analyses categorize him as an ESFP and Enneagram Type 8w9, highlighting his assertiveness, competitiveness, and struggles with vulnerability. On the court, Aran ranks among Japan's top five high school aces, 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). His skills feature a powerful jump serve capable of aces, though accuracy falters when overly agitated. Defensively, he participates in serve receives—unlike some top aces—and adapts to float serves after initial struggles. He takes pride in excelling at both offense and defense, embodying his belief that an ace must be versatile. Aran's development is central during the Tokyo Nationals Arc, where he leads Inarizaki as court captain against Karasuno. Opponents target him with strategic serves to exhaust his stamina, but he counters with resilient play, adjusting receives and delivering consecutive powerful spikes. His performance includes overcoming triple blocks and scoring critical points, though Inarizaki loses the match. Post-loss, Aran displays emotional vulnerability during Kita's address to the team. Beyond high school, Aran joins the Division 1 V.League team Tachibana Red Falcons by November 2018. He later earns a spot on Japan's National Volleyball Team for the 2021 Olympics, 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. Aran maintains significant bonds with key Inarizaki figures. His close friendship with Kita involves efforts to help Kita embrace emotions freely. With the Miya twins, their shared history since childhood grants Aran unique insight into their personalities, particularly Atsumu's intense drive and Osamu's pragmatic nature, leading him to frequently mediate or react to their disputes.