Soleil

Soleil is the daughter of Laslow. She can also be the sister of the Male Kana or Shigure if Laslow achieves a S-Support with the Female Corrin or Azura. Like the other children of Fates, she was placed in the Deeprealms to protect her from the war. While she stayed in her Deeprealm for most of the time, she eventually became interested in mercenary work and amassed a large crew who help out those in need. It is said that her group is always smiling due to her philosophies of keeping a positive attitude.

(Source: Fire Emblem Wiki)