Career
She was Mission Magazine 2003. In June 2005, Iwasa recorded a duet with Naoya Ogawa called "Katte ni Shinryakusha" (An Invader in My Own Way), which was used as an ending song of Sergeant Frog. The two appeared on Music Station and People’s Jam.
Iwasa was in the drama Gal Circle as Rika, a ganguro girl who scams her friends for money.
