Lena Floria is Light Underwood's childhood friend. Upon consuming a Skill Fruit, Lena acquires the exceptionally rare "Sword Saint" skill, which propels her to become a renowned S-Rank adventurer. In contrast, Light initially gains the seemingly useless "Fruit Master" skill, leading to their separation as their paths diverge.

Despite her success, Lena becomes disillusioned with her party, Sacred, due to its members' ruthless methods and disregard for collateral damage. When Light reappears, having discovered the hidden potential of his skill, he challenges Sacred's leader, Grouse, to free Lena from the party. After Light's victory, Lena leaves Sacred and joins Light and Ayla, forming the Luxeria party. Together, they embark on adventures, aiming to uphold their ideals and support each other.

(Source: Hazure Skill Kinomi Master Wiki)