Hikari

Hikari is shown in Eternal Core's story to be somewhat impulsive, saying what she feels and choosing to gather the Arcaea purely on a whim. She is also careless, not concerning herself with questions of her origins or circumstance, instead traveling through the world eager to see all the memories she can. Her exposure to only light Arcaea leaves her unaware of the darkness in the past, contributing to her naïve mindset.