Plain Introduction: A girl with no past, suddenly burdened with the destiny of killing elves, Ailei'er is totally bewildered.
All she wants is to live lawfully in human society, but when a strange, yandere girl latches onto her, Ailei'er is at a loss.
After suddenly unleashing her power and killing the yandere girl, the girl falls into a deep sleep. When she awakens, she discovers that people are calling her an elf?
I'm an elf too? I killed myself? At this moment, Ailei'er is utterly confused.
Then she discovers that she seems to have dissociative identity disorder, and her other personality keeps going on about how she's the big sister and the Holy Grail War and all that.
What can I do? I'm desperate too!
Literary Introduction:
I buried the past and killed the future.
Humans once became gods, and gods eventually fell back to humanity.
Beneath the Throne of Heroes, black and white elves dance.
I bloom amid sin, like a flower at dawn.
I am the Holy Grail, I am an elf, I am Alaya.
This is actually a heartwarming crossover story about a Date A Live-style battle (just kidding).