I live with my mother, who is a doctor, in a mansion in Minato-ku . I wish to follow her footsteps and become a great doctor someday. Once I almost left for a scholarship grant in Germany. But I realized that I could not abandon the other Sailor Soldiers as long as our mission is unaccomplished. As Sailor Mercury, I command the water. I use a mini-computer to analyse our enemies and environment. I was the first Sailor Soldier to be discovered by Serena and Luna.

I am very fond of intellectual pursuits, like reading and playing chess. I am quite different from most students my age, as I actually like studying, and there isn't a subject in school that I don't like. My favorite is Mathematics, though. I also enjoy swimming and they say I'm a pretty good video and computer game player.

Once I met this guy named Greg, who is very smart. He transferred to our school sometime ago and in a major exam we took, he got first place -- a perfect 900 score, while I got second with only 899. The Dark Kingdom pursued Greg then because he had one of the rainbow crystals inside him. I rescued Greg as Sailor Mercury, and I was surprised when he told me that he knew of my secret identity because he had the power to see the future.

Shortly after, Greg had to move away again because of his father's job. I was quite sad to see him go. I gave him a photograph of myself as a reminder... He does visit me from time to time and we go out.