Dusk's attention to Zheng Yichen won't result in any substantial targeting simply because he's an 'Outer Domain Sky Demon,' unless Zheng Yichen goes against Dusk's rules, which would mean directly disrupting the foundational layout of this world.
But Zheng Yichen abides by the rules, yet even that isn't enough.
Dusk's attention won't affect Zheng Yichen. Dusk won't directly interfere with anything outside the Dusk Territory, even if very focused on Zheng Yichen; before he comes into contact with Dusk, Dusk will do nothing to him.
Even if Zheng Yichen were to die accidentally, Dusk wouldn't perform any direct interference.
After Zheng Yichen encounters Dusk, the greatest interference Dusk would have on him is through feedback operations conducted by Boundary Breakers interfering with the world.
