The story takes place in a floating garden in the sky. Welcome to the well-known and prosperous utopia, the city of Itehari.
The protagonist is Hinagiku, a noble from a distinguished family who longs for the world beyond the floating city.
One day, Hinagiku, who has just turned 18, meets a man with amnesia named Yashiro.
This chance encounter becomes the catalyst that draws Hinagiku into a series of events involving secrets and various truths beneath the surface of the utopia.
Experience this story through the eyes of a noble who was born and raised in Itehari. He meets a variety of characters and forms significant bonds.
Ultimately, lean your head forward into the sea of secrets that lie far, far below the calm facade of the city of Itehari...
