|Partner||Asahina Ukyou (ex-boyfriend)|
|Game||Brothers Conflict: Passion Pink|
Brothers Conflict: Brilliant Blue
Reiko has overall looks like Ema Hinata as they both have the same hair length and a petite build, but Reiko is a little bit taller. She also had large breasts which is why Ukyou dated her. She is described by a newspaper as a beautiful young lawyer.
Quite the opposite of Ema Hinata, Reiko's personality is a bit double-sided, where she can play a fool out of Ukyou Asahina. She can be very demanding and very spoiled if she doesn't get what she wants.
In Asahina Ukyo's route, his past has been revealed and it was really entertaining. Somehow some of his personalities have been changed from time. On the part, after he knew that Reiko only started to date him just because he's a child of Miwa, rages him. After that meeting, he met Ema, who greatly looks like Reiko. In a fit of rage, Ukyo nearly hurt Ema, believing her to be Reiko, until she slapped him back to his senses. Once calmed down, he reveals his past with Reiko.
- Reiko does not exist in the anime.
- Reiko dated Ukyou Asahina because of his mother.