|Voice Actor||Takako Honda|
Michiru is an attractive young woman slightly older than the Getter Team. She has short brown hair and brown eyes. She has porcelain skin, red lipstick, and wears a black dress with a necklace and a white lab coat. Occasionally, Michiru wears glasses when she is studying.
As a schoolgirl, Michiru had an appearance more similar to her original counterpart with a hairband and blue sailor suit uniform.
After the the time-skip, Michiru's hair grew waist-length and wears a blue dress under her lab coat. With the destruction of the Institute, Michiru wears dark clothes including a black flat hat and sunglasses.
Compared to her other counterparts who were friendly, polite, and caring, Michiru is much more serious and cold. Michiru has a very strained relationship with her father after the events that happened with her brother Tatsuhito. She is much more interested in studying the Oni rather than fighting them, perhaps as a way to find weaknesses or distance herself from her father. When it comes to the Getter Team, Michiru only sees them as hired muscle that improve her father's work but sees them as a necessary force when it comes to fighting the Oni. They in turn refer her as names like "Oni Musume" by Ryoma and "Kannon-sama" by Benkei.
Michiru is an accomplished scientist in biology, studying the physiology of an Oni closely and observing how they function. She also has some skills in mechanics as well as energy, as shown when she helps the staff improve the Getter Robo.
Michiru mostly remained on the sidelines collecting samples of Oni from battles and sights that might be tied to them. When the Getter Robo disappeared for three years, Michiru assumed command of the Institute when her father stayed in the old Institute building after some disputes with the government. After the Getter Team returns, she informs them of everything that has happened while observing any milestones with the Getter Robo. With attacks from Abe no Seimei and the Four Heavenly Kings, Michiru watches as the battles unfold. After the final battle, Michiru goes to the remains of the Institute while encountering Hayato and Benkei wondering what might have happened to Ryoma after he disappeared.