Yachiyo Todoroki, a 20-year-old floor chief and second-in-command at Wagnaria family restaurant, sports mid-back golden-brown hair and a perpetual gentle smile. A katana rests at her waist, a tradition from her family’s blade-smithing heritage. Though rarely unsheathed, its presence signals pride in her lineage, unnerving patrons and colleagues alike—a practice abandoned after she reciprocates Jun Satou’s feelings by the series’ end. Her demeanor blends nurturing warmth with fierce guardianship. She shields coworkers like Mahiru Inami and Popura Taneshima from distress, yet her loyalty to manager Kyouko Shirafuji edges into obsession. Childhood rescue from bullies cemented Yachiyo’s idolization of Kyouko, driving her to fulfill every whim, including crafting towering parfaits. Perceived rivals for Kyouko’s attention face her drawn blade, as seen with Hyougo Otoo or Jun during misunderstandings. Unaware of Jun’s four-year unspoken affection, Yachiyo misreads his gestures, chatter fixated on Kyouko. Aoi Yamada’s revelation of Jun’s love sparks turmoil, resolved only when Jun concocts a ghost story to ease her suspicions. His quiet devotion—preparing porridge during her illness, ensuring Kyouko delivers it—gradually shifts her perspective. Their bond culminates in romance, with Yachiyo stepping down as chief to marry Jun, as shown in crossover material. Her growth lies in tempering blind Kyouko devotion with emotional awareness, recognizing Jun’s steadfast presence while retaining her cheerful conflict-avoidance. A history of childhood bullying, reliance on Kyouko’s protection, and familial ties to bladesmithing forge her identity, intertwining vulnerability, loyalty, and quiet strength.