She has appeared in the films The Fast and the Furious: Tokyo Drift, Cherry Pie, Dear Friends, Southbound, Heat Island, Handsome Suit, Orion in Midsummer, I’ll Pay, After the Flowers, Paradise Kiss, and Roommate. On television Keiko has starred in Mop Girl, Homeroom on the Beachside, Buzzer Beat, Hostess with a Pen, Moon Lovers, Hero, and more. She is managed by Stardust Promotion. Keiko has authored six books and has starred in many commercials. She won a Television Drama Academy Award, Nikkan Sports Drama Grand Prix Award, and a Galaxy Award. Her favorite actress is Keira Knightley and she is a big fan of the band Linkin Park.