Nao Yoshinaga is renowned in the company for her sternly efficient nature, earning her the nickname of the Ice Iron Lady. One day, she accidentally overhears her coworkers placing a bet with Satomura, challenging him to make Nao develop feelings for him. Little do they know, Nao has been harboring a secret crush on Satomura all this while. The bet might just offer Nao the golden opportunity to act on her feelings.