Xingye Ying was born frail. After years of her mother’s treatment, she became a demon who could withstand sunlight at the age of sixteen. But after her mother died, side effects caused her to lose some of her memories.
Muzan Kibutsuji: You’re a demon too. How did you manage that? Where is the Blue Spider Lily?
Xingye Ying: Wherever there’s gossip, that’s where I’ll be.
Yoriichi Tsugikuni: What do you think life is?
Kagaya Ubuyashiki: Another one... the original demon.