Nephilim Verum

Nephilim Verum is a mysterious ginger-haired girl. She claims to be a moderator who oversees the flow of time, and frequently talks about the importance of changing the future through the power of will—change is like a ripple through time, a butterfly effect—and how the events of the past and present can influence the future.

Nephilim essentially acts as a sort of spirit guide for Shion Uzuki, helping Shion to heal and overcome her past trauma and painful traumatic memories.