Yuki is best known as the sole survivor of a catastrophic event that wiped out an entire city—something that happened three years back. What makes her story compelling is that she recently received a message from her father, someone she'd long assumed died in that same disaster. That's what's driving her now: she's heading back toward the ruined city called "Lost" alongside her traveling companion Takuya, trying to find answers.
She's got some kind of mysterious powers, though exactly what they are or where they come from isn't immediately clear. Fans often speculate about how these abilities connect to her survival or to whatever her father's message might mean.
Content compiled by AnimeList.moe from publicly available sources.
