Concerned that Kanata is overworking herself, her sister Haruka who is also a school idol at Shinonome Institute comes to check out Nijigasaki's School Idol Club. However, she learns that Kanata has been more sleepy lately, prompting Haruka to say she will quit being a school idol so she can help out Kanata more with the housework. Kanata tries to persuade her not to quit, but Haruka storms out of the clubroom. Haruka talks with the other club members the next day, telling them that she wants to stay in the club while also protecting her sister's happiness...