Seira (real name: Hirara Shin Seira) is a 26-year-old girl with a high need for approval, working at a maid cafe. Her younger sister, Kira, is a 19-year-old idol who is gaining immense popularity with her cool character, but she spends all her time and money for her sister. Karin, a member of the same unit who mistakenly thinks Kira is being seduced, tries to separate the two...