Yukari Goto voices the character 川辺ユキ役 (no romanji, sorry!), who appears in episode 11 Haitoku no shinario (Immoral Scenario).

Summary

Lemon Angel was once the greatest girl band of Japan, but then it broke up and most of its members vanished. When a music producer decides to put together a new Lemon Angel, average high schooler Tomo Minaguchi is approached to audition for the group. Little does she know of the mystery behind the original Lemon Angel.

Official Site

You can find more information at the official site http://www.lemon-angel-project.com.