Rulutieh, youngest princess of Kujyuri and daughter of Ozen—a Yamato Eight Pillar General—grows up timid and sheltered under the overprotection of her family, particularly her sister Shis. Prone to fainting during stressful social interactions, she embarks on a transformative journey as a messenger traveling with Ukon’s mercenary group to the imperial capital. There, she encounters Haku and Kuon, accompanied by Cocopo, a massive Hororon bird she regards as both guardian and kin, a bond reflecting her innate Yaana Mauna ability to communicate with animals. Her personality shifts markedly across timelines. In the primary narrative, she harbors unspoken affection for Haku, reacting with quiet jealousy to rivals for his attention—a dynamic enduring even after Haku assumes Oshtor’s identity. Oblivious to her own feelings until confronted by Haku’s apparent death, she channels her introverted nature into creating "boys’ love" literature and art, her creativity contrasting her reserved demeanor. *Lost Flag* unveils an alternate future where Rulutieh evolves into a resilient matriarch. After bearing Haku’s daughter Tiseriri, her soul persists in a spectral form linked to the child’s handheld device, her physical body lost to past events. This spirit state grants abilities like telekinesis, phasing through objects, and brief physical manifestation, though overexertion drains her energy. Balancing maternal warmth with discipline, she nurtures Tiseriri’s independence while chastising improper reading habits and restricting mature content. Beyond family, she shares a nuanced bond with Princess Atuy, who glimpses her hidden desires—traits Atuy finds unsettling. In *Mask of Truth*, Rulutieh’s observational acuity leads her to become the first in Haku’s circle to uncover his true identity. Alternate iterations in *Lost Flag*—Marebito Rulutieh, collaborating with Haku on confectionery endeavors, and Shucre, allied with Lord Mashiro’s faction—further showcase her adaptability. Her arc traces a journey from fragility to quiet fortitude, retaining core compassion and artistry while adapting to loss and motherhood. The numerical code "8966" in her barrier technique—phonetically echoing "Haku-Ruru"—subtly mirrors her enduring bond with Haku across altered existences.