Eiji and Kaho are a normal, loving married couple. Eiji is working full-time as an office worker and Kaho as a part-timer for a food vendor.

Things are starting to change when Eiji has to start working overtime to pay for damages he caused in an incident at work.

At the same time Shouta, grandson of Kaho's boss at her part-time job, begins helping out Kaho with her work.
Kaho starts acting more and more strange and wants to repeatedly quit her job despite the financial problems the couple is facing.
Eiji is getting worried about his wife. Nevertheless lately Kaho seems to be in a good mood and appears to be even more beautiful.