In order to help her father, Chiwa Takanashi agrees to an arranged marriage with the company president, Hokuto Mamiya - a man she doesn't know - at the request of Hokuto's grandfather. Chiwa believes the arrangement isn't binding, but her new partner seems to think otherwise. Can two strangers living together find their way to a happy marriage?!

Hokuto is working harder than ever after his promotion, and the couple rarely spends time together anymore.

Chiwa continues working at Ai-Max with Asahina, a guy she dated in college. Asahina knows she's married to Hokuto, but he still has feelings for Chiwa.