Y/n learned young that no one was coming back for her. Abandoned by her parents and left behind by the only family she had, she survives alone in the poorest corners of Yoshiwara—small, hungry, and far too noticeable for her own safety. Then, one night, she runs. Ume sees her first. Gyutaro sees the men chasing her. Neither sibling knows the little girl yet. But they know exactly what happens to children who have nobody. And for reasons neither of them can explain, they decide to make sure Y/n isn’t one of them.