“Nanami and Sakura are best friends. Nanami is the elder sister who is strong-willed and dependable, while Sakura is the reserved, but lovely little girl, who has a mega bust that is disproportionate for her petite body. They are friends from school, but they also have a connection through their families. On her days off, Nanami goes for a drive with Sakura’s father, Shouhei, and he treats her like another daughter. This makes Nanami wish that he would marry to her mother, Kanako. That’s how much she trusts him.