An attack on Earth by fragments of the Blue Star throws the planet into chaos, while the invasion of an alien civilization leaves everyone both thrilled and terrified.
The fragments of the Blue Star affect people with specific DNA sequences in different ways, granting those affected special abilities.
More than a decade ago, in an air-raid shelter, Yu Yuan bit his own wrist and fed his blood to Lin Jiyun to save him. But this caused their genes to merge, making them symbiotic.
Knowing nothing about love, Yu Yuan only understands that Lin Jiyun is the same kind as him.
Theme: Every life matters
