Tsunami

Tsunami is truly a Juraian Spaceship. Though she seems to have a personality all her own thanks in part to Sasami. To put it in simple terms, Tsunami is the master computer of the Light Hawk.

Tsunami is the first generation tree of the Juraian sentient "Space Trees". These trees are capable of forming a wooden frame around a special shell used for transporting the inhabitants of Jurai around the galaxy. These ships are controlled by a "Master Key". These keys are tuned with the DNA of the owner of the ship. Therefore only the person who is tuned to the ship can operated the ship. The keys come in many different shapes and are actual pieces of the Trees themselves.

However, Tsunami obeys two known master keys. Tenchi's master key, and Sasami. Due to the top secret classification of data on Tsunami I can not get any further details.