Aeterna

 (クオン Kuon) is one of the Characters in I Am Setsuna.

History
Before Setsuna became the “sacrifice,” Aeterna was a traveler of many mysteries who visited the village. Now, as a soldier representing the escort group, she has the faithful trust of the villagers, and is adored as a sister by Setsuna. She is invested in the journey more than anyone else and due to her strong sense of responsibility, she absolutely cannot fail her duty. She often has at it with the silent hero, whose mind she can’t read.