OVA
Description
One of the three Chōshin goddesses—alongside Tsunami and Tokimi—Washū Hakubi helped create the multiverse. To investigate a being surpassing their power, she sealed her divine consciousness and abilities into three gemstones and descended into the third dimension as a mortal infant, her memories suppressed. Found at age three with only the three gems at a monastery on Kanamitsu, she later enrolled at the Jurai Imperial Academy, becoming its youngest philosophy student and rising to prominence as the universe's greatest scientific genius. She and colleague Naja Akara severed the Academy's ties to Jurai, reestablishing it as the independent Galaxy Academy. During this time, she married Mikamo Kuramitsu and gave birth to a son, Mikumo. Political strife led Mikamo to annul the marriage and take Mikumo, devastating Washū. In grief, she altered her physical form to resemble an adolescent girl, though she retained the ability to revert to an adult form, preferring the epithet "Little Washū" (Washū-chan) thereafter.

Attempting to replace her lost son, Washū and Naja used bio-engineered entities called Masu to create children capable of wielding her gems' power. Both creations perished in an accident, leaving a massive crater known as "Washū's Pore" at the Academy. After Naja disappeared during a pirate attack, Washū cloned her. This ambitious and malevolent clone possessed a prototype body to become the antagonist Kagato. Washū later created Ryoko using Masu DNA and her own ova, making Ryoko her biological daughter. Kagato assisted in developing Ryoko and her living spaceship, Ryo-Ohki, both designed to harness the gems' power. Kagato subsequently betrayed Washū, imprisoning her for 5,000 years within an alternate dimension of her battleship, Sōja, while brainwashing Ryoko and Ryo-Ohki into his service.

Freed accidentally by Mihoshi during a battle involving Tenchi Masaki, Washū joined the Masaki household on Earth. She established an interdimensional laboratory accessed through a closet door, comprising five specialized planets linked by subspace corridors. She developed a dual interest in Tenchi: as a research subject due to his ability to generate Light Hawk Wings—a manifestation of higher-dimensional power—and as a romantic prospect, partly influenced by her psychic synchronization with Ryoko during imprisonment. This link gave her insight into Ryoko's emotions, which she sometimes manipulated to provoke honesty. Washū later confirmed Tenchi as the transcendent being the Chōshin sought but prioritized her personal regard for him over his cosmic significance.

In spin-offs, her role varies. In *Tenchi Muyo! GXP*, she created the cabbit Fuku, Ryo-Ohki's sibling, and occasionally operated disguised shops near the Galaxy Academy. In *War on Geminar*, she hypnotized Tenchi's half-brother Kenshi Masaki to protect family secrets, referred to by him as a "mad scientist." The *Tenchi Universe* continuity reimagines her as a non-divine, exiled scientist imprisoned for 700 years after creating planet-destroying weapons, though she retains her scientific brilliance and eventual residence with Tenchi.

Her abilities include energy manipulation (e.g., forming blades akin to Ryoko's), teleportation, telekinesis, and petrification. She rarely uses innate powers, preferring technological solutions. She maintains a complex maternal relationship with Ryoko, employing harsh methods to rehabilitate her from Kagato's brainwashing, and is an ancestor of Mihoshi Kuramitsu, though this remains largely unacknowledged by others.