Their combat power is naturally strong, but you can tell from their attitude towards Dolls. They can't be as unaffected by the curse as Li Ye.
According to Mingxia King's deduction from Ten Thousand Dragon Lake, Li Ye's curse was upgraded due to some sort of change.
It became a higher level curse, able to ignore the influence of other Spiritual Ability Users' curses.
From Zhu Ye's Memory Fragments, it's known that Li Ye's original curse should've been Heavenly Slaughter Star, not Calamity.
It's estimated that Mr. Shadow's existence upgraded Li Ye's curse.
Of course, Li Ye feels that Calamity is slightly better than Heavenly Slaughter Star.
At least, Dolls and his sister are no longer lonely, not influenced by Heavenly Slaughter Star.
In Zhu Ye's timeline, he and Li Yunyan communicated through various door boards passing notes… it was truly hopeless...
