The year is 2115, the world has advanced enormously, with the invention of Lucigen humanity got rid of air pollution. We are diving into the mind and soul of Miyashiro Yoshiyuki - the 4th section prime ministers' son.

Yoshiyuki has a heart disease from the time he was born, he couldn't go outside because of how it weakened his body. Yoshiyuki was waiting for a transplant, not because there was no donations, but because he was too young and couldn't survive the operation. At the age of 18 he was old enough for the heart transplant, after that, everything he believed in got changed…