Mina Kiuchi, an office worker in her late twenties, was at her company drinking party when she had to help Ikuto Kanzaki get back to his apartment because Ikuto was too drunk to return home by himself. Ikuto Kanzaki was a section manager from another department. There, Mina was mistaken as Kanzaki’s pet cat, who bore the same name as Mina (the cat died at the age of 12). Having experienced the loss of a beloved pet cat herself, Mina empathized with Kanzaki. She thought maybe Kanzaki was still in the state of shock due to his grief. So Mina decided to accompany him until Kanzaki was fully satisfied (although Mina had a hidden motive too). However, Kanzaki was treating her more like a lover rather than a pet cat. This led to more sexy flirting moments and occasionally terrifyingly embarrassing moments between them.