A mysterious girl crash-lands on Planet Sharaku during its bicentennial celebrations, retaining only her name amid shattered memories. The protagonist aids her quest to reclaim her past, uncovering imminent dangers to the planet’s survival.

Her arrival unleashes pivotal events: a pendant-linked device accelerates part transfers and transformations for the protagonist’s robotic ally, hinting at deeper ties to Sharaku’s origins or unseen external powers.

Memory shards resurface alongside escalating planetary chaos, exposing her involvement in a covert struggle against the Planetary Management Committee. These disclosures entwine her fate with both the planet’s survival and the crew’s personal trials.

Her presence reshapes group dynamics, sparking a romantic subplot that clashes with another’s unrequited longing. Friction endures until shared adversity forges mutual respect and emotional resolution.

The narrative closes with her joining a ceremonial oath-swearing ritual, kissing the protagonist to seal their bond. Though summoned to a wedding under cryptic circumstances, its implications linger beneath the surface. Restored memories and resolved strife allow her departure with key allies—destinations and future roles uncharted.