Shirotou Haya

She is an outgoing and carefree Illuminator, born and raised in Earthcaress Beacon, sometimes a bit naive, but overall easy to get along with. However, her characteristics will make others occasionally forget that she is actually an experienced Arboranger.

Spoiler

It turns out that the actual Lanteria is a fusion of souls, and also a manufactured heroine.

In reality, Lanteria has become the head of Earthcaress beacon and she bears the expectations of the Beacon's Illuminators such as Tranquillia.