Funaho was a woman born and raised on Earth before she became the wife of Jurai's emperor, Azusa. Marrying despite the immense prejudice of mixed blood unions on Jurai, Funaho would give birth to her son, Yosho, and become Jurai's Minister of Intelligence. She also serves as the head of the Masaki clan in Jurai's Imperial Family when Azusa became the planet's emperor. She is close friends with Azusa's second wife, Misaki, as the woman helped Funaho in adjusting to life on Jurai. Funaho is also one of the few characters in the series to be aware of her son's true form, as not having aged one bit since crash landing on Earth 700 years ago.
Learning that Washu's technology gave her capabilities on par with Jurai's military fleets, Funaho traveled to Earth with Misaki to meet the scientific genius to see if she would allow Jurai to mass produce Ryoko and Ryo-ohki to enhance the planet's defenses. Washu declined the offer as she didn't want to betray Tenchi's trust and wanted there to be only one Ryoko, but assured Funaho that she wouldn't mass produce her creations for Jurai's enemies as she has no interest in doing so.