Sharu holds the vital role of Dragon Priestess in Flonyard, charged with preserving the natural equilibrium of the world's elemental forces. She oversees four Elemental Dragons embodying fire, water, wind, and life, ensuring harmony between nature and its inhabitants. Choosing isolation, she resides in a treehouse at the Dragon Forest's edge, shunning civilization and modern technology, accompanied solely by her sacred creature companion, Pega, a gift from the Sky Priestess.

When demons begin corrupting the forest and twisting its wildlife, Sharu's duties are thrown into disarray. Despite her formidable archery skills, she finds herself overwhelmed fighting the threat alone. This crisis forces her out of seclusion, leading to an alliance with the human heroes Shinku Izumi and Nanami Takatsuki. Together, bolstered by the armies of Flonyard's three nations, they cleanse the forest and restore balance.

Deeply dedicated and strong-willed in her sacred tasks, Sharu struggles with social unease stemming from her reclusive life. Direct interactions, especially in group settings or under scrutiny, visibly unsettle her, causing her to lose her usual composure. She participates in the "Limone Resort - Panorama Spa" OVA's character-focused segment ("Gravure Talk") alongside others such as Aria and the Expedition Boys.