Sasami Masaki Jurai

Sasami is the younger sister of Ayeka as both sisters were born to King Azusa and Queen Misaki. When she was six, Sasami almost lost her life in Ryoko’s attack on Jurai. She entered a chamber of the palace where all the Jurai trees were kept. As she was heading for another platform, a Jurai ship damaged by Ryoko’s attack crashed into the chamber causing her to fall into Tsunami’s tree chamber. If it weren't for a drop of blood entering the moat of water surrounding Sasami and Tsunami's tree, then she could have died. Once Tsunami felt Sasami's blood, she could sense that Sasami was dying and assimilated herself with the young Jurai princess as both girls will one day become one being when Sasami is an adult. However, Sasami would keep this a secret from her family and friends fearing rejection if they learned of her link to Tsunami. She also seen herself as a creation of Tsunami believing her true self died on the day of the fall.

Sasami would later tag along with Ayeka in her older sister's search for Yosho as she kept herself in stasis for 700 years as well. Sasami freed the captive Tenchi and Ryoko causing Ryoko to make the decision of crash-landing Ryu-oh to Earth. Sasami currently resides on Earth with Ayeka as she does most of the cooking around the Masaki household. She did confess of her connection to Tsunami with Tenchi and the girls eventually. With her link to Tsunami, Sasami does have some control over summoning Tsunami for any emergency. This also means that she has occasional nightmares indicating incoming danger such as the dreams of Kagato and Tokimi. Beyond her link to Tsunami, Sasami is also a capable fighter in combat as she proved capable of beating trained Galaxy Police officer Mashisu Makibi in battle. One of Sasami's hairbands is capable of turning into a battle staff that she can use in battle.

While being carefree and energetic, Sasami is quite mature for someone her age, usually being more responsible than older sister Ayeka when she fusses over Ryoko. Other than cooking and controlling Tsunami, Sasami also plays with Ryo-ohki and likes to read romance manga on occasion. For someone at her age, Sasami also has some experience with understanding sex as she figured out Tenchi’s reaction to seeing Ayeka nude after she was disrobed of her towel by Ryoko at the inn onsen.