Single mother Umihara Haru was active in the American business community until she was directly headhunted by the CEO of Itsuki Trading, a leading Japanese general trading company, and returned to Japan. She takes up the position of assistant manager of the elite Corporate Planning Department but her direct superior turns out to be the ex-husband whom she divorced 10 years ago. From ramen to rockets, Haru takes on all sorts of problems within Itsuki Trading’s enormous departments and companies. She proclaims that she wants to enjoy work and does things that defies common wisdom amid an atmosphere of paralysis due to a conservative deputy CEO.