Masatoshi is a man who wants to get married, while Sanae is a woman who feels content without it. They have been dating since they were students and have the same workplace, Ageha Technical, one of the top tech companies. After successfully completing their hash internship, Masastoshi plans to propose the day before they are to be assigned. Though Masatoshi earnestly loves Sanae and is eager to marry, Sanae is the objective type and doesn't feel that marriage is a necessity.