Platinum Smile

 is the fifth single released by Kosaka Riyu. It reached the peak position of #95 and charted for two weeks. The title track Platinum Smile was featured in Kamen Rider THE NEXT movie.

CD

 * 1) Platinum Smile
 * 2) Platinum Smile Rock Edit.
 * 3) TOMORROW IS ANOTHER DAY
 * 4) Platinum Smile (Instrumental)
 * 5) Platinum Smile Rock Edit. (Instrumental)
 * 6) TOMORROW IS ANOTHER DAY (Instrumental)

Limited Edition DVD

 * 1) Platinum Smile (Music Clip)

Featured Members

 * Kosaka Riyu