Satoru, a wealthy old man, made a fortune in a single generation after starting his own business, and was about to withdraw from the line as chairman.He had left behind an inheritance in his not-too-long life.Mio and Hijiri, who heard about it through rumors of the wind, rushed to see her again for the first time in ten years since she was a child.The two used to be good friends when they were children, but they quarrel and sarcastically because they want inheritance.