Shaia is the wise and compassionate captain of the Glomar. Her decisive orders and keen awareness of the overall situation prove vital to protecting her comrades and restoring the Earth. She is the one who devises the plan to set out for the orbital elevator deep in Mu territory. It is Shaia that bravely rescues Kei from the Tobu clan elders and commands the combined Emaan forces near the end of the story.
Shaia grew up with her twin sister Maneesha and was set to take a high position in the Tobu clan. She was in love with the man her sister Maneesha wanted and decided to leave the capital and command a scavenger vessel, the Glomar, rather than make her sister unhappy.