OVA
Description
Yuuki Utsugi originates from Hitachinaka, Ibaraki Prefecture and operates as the 75mm loader, radio operator, and navigator for Ōarai Girls Academy's Rabbit Team. Her initial motivation for joining sensha-dō was a belief it would impress her boyfriend. Following Ōarai's exhibition match against St. Gloriana Girls' College, where she and teammate Ayumi Yamagou abandoned their M3 Lee under heavy fire, she reported her boyfriend ended their relationship and later sought relationship advice from Saori Takebe.

She exhibits a patient and generally perky disposition with occasional naivety. During the match against Pravda Girls High School, she suggested applying a bandage to the M3 Lee's damaged gun. In OVA 2 ("Survival War!"), she played with tent herrings alongside Hana Isuzu. Her literal interpretations surfaced during the Anzio OVA pursuit by two Semovente da 75/18 tank destroyers; she remarked the situation was "technically even" because the M3 Lee possessed two guns, drawing disapproval from Rabbit Team commander Azusa Sawa.

Her combat role involves loading the 75mm main gun and operating the radio. While she made no significant impacts against Saunders University High School or Pravda, she and Rabbit Team demonstrated growth during the national tournament finals against Kuromorimine Girls Academy, contributing to disabling both the Jagdtiger and Elefant tank destroyers. During the Anzio match, under Azusa Sawa's command, Rabbit Team employed the M3 Lee's dual-gun setup as a makeshift auxiliary predictor, a tactic unique to them in the anime. Azusa later acknowledged Yuuki's tactical input during the Kuromorimine match when Yuuki devised a plan to overcome the Jagdtiger while the team was in distress.

Her favorite flower is Lily of the Valley and her favorite tank is the U.S. M24 Chaffee. Her name derives from players on Japan's 2011 World Cup-winning soccer team—striker Yūki Ōgimi and defensive midfielder Rumi Utsugi. In the "Motto Love Love Sakusen Desu!" spin-off manga, Anzio's Amaretto was depicted flirting with her. She initially chose Kodo (incense) over sensha-dō in the Drama CD "Everyone! What Are You Choosing?" before ultimately selecting tankery. She shares a birthday with historical events involving Benito Mussolini's arrest and Austria's reestablishment.