Luine is Marelle's eldest daughter and Lytt's older sister. She works evenings as a barkeep, assisting her family with operations at their northern village inn. Her responsibilities include supporting daily inn management alongside her mother and younger sister, keeping the inn running smoothly.

Luine interacts with Cayna following Cayna's arrival in Leadale, as Cayna first awakens at their family inn. While her specific personal history or development arcs are not detailed, Luine's role centers on maintaining household stability and contributing to the inn's function as a welcoming community hub, reinforcing the familial support structure within the northern village.