Hotaru Tomoe is a pivotal character in the anime series 'Bishoujo Senshi Sailor Moon'. Known as Sailor Saturn, she wields immense power, capable of both destruction and rebirth. Despite her formidable abilities, Hotaru is a gentle and kind-hearted girl who struggles with her dual identity. She is often portrayed as delicate and frail due to a mysterious illness. Her character arc involves growth and redemption as she learns to balance her human side with her duty as a Sailor Guardian, ultimately becoming a key ally in the fight against evil.