In their previous lives, they were the sharpest knives in the organization. Once they died, the twin sisters both traveled through time - sister Yan Zhi traveled to the ancient beast world, the male transformed into a beast, and the female awakened her superpowers. My sister Yan Tu travels to the future world of beasts, where technology is respected and machines are rampant. The two are thousands of years apart, but they are bound to the same system and perform the same mission: "Collect the core of the beast world and piece together the complete time and space." They have telepathy, but they can only sense each other at the moment of life and death.
The only thing that can be done is to become stronger until the sisters are reunited across thousands of years.
