He only has six months of memory, but he has to travel across a hundred years to save a sister who everyone says "doesn't exist".
In a future where time travel is monopolized by medical companies, every time you travel consumes proof of your existence. Chen Mo is being forgotten by time, but he must find Chen Yu who was trapped in 1942 before disappearing completely, and uncover the huge life-devouring conspiracy behind "time therapy".
When your past is running out, the future is your only weapon.
