School: Seirin High
Age: 17
Height: 156 cm (5'1")
Weight: Unknown
Job: Coach
Talent: Ability Scan
Blood type: A
Birthday: February 5

She is the coach of the basketball team. She has the ability to be able to tell the potential of each basketball player just by looking at their bodies. Her ability works best when the players are shirtless. She got this ability by following her father to work. She's so horrible at cooking that her teammates can't endure eating it (moreover, she has the habit of mixing vitamins with her cooking). She's good at studying and is ranked #2 in the whole school. Riko can be really scary when she's mad, and she's often teased as being 'flat-chested' compared to Touou's Momoi.