Himawari Yamabuki works as a designer at a certain design company. Her junior and boyfriend, who is the smallest in the company at 148 cm, was Peony Tsubakiki, who is also the largest man in the company at 205 cm. The two started dating and started living together at the turning point of half a year. … But sunflowers had a problem. "Why are you always barefoot !?" In sex, Peony always cares about the body of the sunflower and ends up with barefoot. Furthermore, due to the fact of the shock revealed from the sunflower, the stopper held in the peony came off.