Rifuta Imu

Rifuta Imu was another idol like Kokomi.

Background
Imu is a popular girl in PK Academy like Kokomi but she's continuously being outshines along with being dumped by her boyfriend for Kokomi. Imu then goes after Kokomi by looking at her weakness until she learned how the latter likes Kusuo. She later fell for Kokomi instead of Kusuo and had thought of destroying Kusuo's image as she saw him as a playboy/cheater.

Trivia

 * Her name is a pun/anagram of of Time Leap "Rifutaimu" - "Taimuriipu"