Tarnem, a 4-star Dendro sword-wielding botanist from Sumeru, is affiliated with the Oasis Keepers and embodies resilience and nurturing. She possesses a wiry physique and distinctive features like sandy-blonde micro-braids and striking amber eyes. Tarnem's survivalist attire blends practicality with elegance, featuring a tunic and a brimming sun hat adorned with rattling gourds. Her combat style involves rapid strikes with her serrated shamshir and elemental skills that deploy thorns and summon an ethereal cactus for AoE Dendro damage. Although pragmatic and independent, she shows a hidden softness for plant life and a profound understanding of her desert environment.

Tarnem collects plant-based resources with a 25% chance of obtaining an extra item. Her constellations, which enhance her abilities, include increased area of effect and damage reduction for enemies within specific conditions. Ascension materials required for her advancement include a significant amount of Mora, Nagadus Emeralds, Henna Berries, and special regional items. At level 90, her base stats are: 10,156 HP, 212 ATK, and 647 DEF, with a special stat in Elemental Mastery (24.0%). Tarnem's lore highlights her harsh upbringing in the desert and her connection with flora, emphasizing her survival instincts and fierce approach towards life. She possesses a Dendro Vision, granted during a life-altering sandstorm, symbolizing her deep bond with nature.

Tarnem reflects on resilience and survival through nature, likening herself to a weed for durability. She brews tea from a poisonous mushroom, hinting at her toughness. She views Collei as fragile yet resilient, and Dehya as someone who values resources. The Vision symbolizes life's promise, where plants, like Desert Ironwood, break through barriers with slow, steady growth. Interesting facts include a cactus named 'Tariq' that mimics cries to trap predators. In her "Ascension" phases, Tarnem describes her evolving strength and connection to the desert, culminating in her identity as an unyielding force flourishing amidst adversity.