Aster

"It is I, Aster, the Guardian of Light."

- Aster Aster, the Guardian of Light, is one of the three Guardians that protect the balance of light, darkness and chaos.

Background
"It's finally time. At last, I get to interact with Noah and Team 16. I tried, for the longest time, but it's difficult. But... listen up. The things that are happening... the demon virus, the Shoggoth, the monsters being on edge, it's far bigger than that. This darkness... it is older than anything the human race has known. In the beginning, long before the humans, before the Earth, before the first germ cell that crawled on this soil... he created me. He who gave me life. The lord, God, and my father. I looked up at him, and I felt so happy, so warm. To the left lay my brother, Ezekiel, The Guardian of Darkness. To the right my brother Gadreel, The Guardian of Chaos. It felt so warm when God looked at us, it was brilliant, but he left. Left the three of us to look after his creation. I failed to see in time that Ezekiel's loneliness had corrupted him. His violent behavior forced me to lock him up in the darkness, behind The Dark Gate, but... the seal. It is weakening. The darkness, imbued with his hatred, it leaks out. It is only a matter of time before he gets out. It cannot happen."

- Aster

Personality
Aster is, at most times, a well-meaning and benign character, fitting to her role as the Guardian of Light. Her actions are done with the human race's best interests in mind. Her outer appearance, however, hides a lingering guilt for not being able to prevent her brother Efraim, the Guardian of Darkness's corruption. His violent behavior forced her to lock him up in the darkness against his and Gadreel, the Guardian of Chaos's will, and led to a rift between the three angel siblings. In her attempt to atone for her failure, Aster frequently interferes in the human realm's affairs, later allying with SPDF agents Noah Ridge Jr., James Thorpe and Marie Belle in their hunt. Later, after Alexia Birmingham ends up in a comatose state, Aster temporarily possesses her to heal her, out of a desire to prevent more deaths.