Salaryman Kirishima Shirou (24 years old) was suddenly laid off. Drinking his sorrows away at a bar one night, he was approached by Ishimura Ai (28 years old), a mysterious and attractive woman who offered him a new job. He signed the contract then and there but discovered the next day that it was actually a marriage certificate and he’s now a full-time househusband! Is this the deal of a lifetime, or did he fall into some sort of trap?!