Day in and day out, Kyouko Mogami works multiple jobs to support her childhood friend, Shoutarou "Shou" Fuwa, in his rise to stardom as an idol. She never complains about her way of life, as she is deeply infatuated with Shou and would go to the ends of the world for him. However, her heart is broken when she overhears Shou talk about how he views her as nothing more than a maid he cares little for.

Angered over being used, Kyouko flies into a rage and swears to get revenge on her former crush by entering the world of showbiz to surpass him. Joining the relentless and unforgiving entertainment industry proves to be a challenge, as she continuously meets people who force her out of her comfort zone. But for the sake of vengeance, Kyouko is determined to push herself and rise to the top.