Hourai Ningyou Jacket no Ano Ko is a minor, unnamed character associated with Touhou Project, appearing as a mysterious doll-like figure referenced through the Hourai Doll motif. The name suggests a specific “that girl in the jacket,” but the character is not established as a fully defined individual with a canonical personal identity. In the series’ broader setting, such figures often serve as evocative background elements, reinforcing the strange, whimsical, and ambiguous atmosphere that Touhou is known for.