Despite Earthās advanced space industry, Sahanās moonbound spaceship crashes, leaving him stranded out in space for a year. When heās rescued and brought back to Earth, he finds that 11 years have already passed there. While struggling to overcome his space trauma and adjust to the many changes on his home planet, Sahan finds himself leaning on Heegeon, the little boy next door who is now an adult and hasnāt forgotten him. Heegeon might be the only one who can help Sahan find his place in a world that has long moved on without himā¦