Yumiko Sato is a gyaru high school student who secretly works as a voice actress under the stage name Yasumi Utatane. One day, she has a hostile encounter with a quiet and reserved classmate named Chika Watanabe. When she lands a role to co-host a radio program, Yumiko discovers her partner is none other than Chika, who also secretly works as a voice actress under the stage name Yuhi Yugure. While they are friendly on the program, off air, they constantly bicker with each other. The story follows their tumultuous relationship.
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