TV-Series
Description
Sailor Saturn is the Guardian associated with silence, destruction, and rebirth, and in the anime season Sailor Moon S her civilian identity is Hotaru Tomoe, a frail twelve-year-old student at Mugen Academy. She is the last of the Sailor Guardians to be introduced in the series. In the original Japanese version and in most English-language versions her civilian name remains Hotaru, though some international localizations have given her a different civilian name. Her background is marked by early tragedy. When she was eight years old, a freak storm caused a fire that killed her mother and left Hotaru near death herself. Her father, the scientist Souichi Tomoe, made a desperate bargain to save her, but the arrangement also turned her into the host of the entity Mistress 9, an agent of the Death Busters. Because of this, Hotaru suffered from serious illness, seizures, blackouts, and spells of lost memory. An incident in which she unintentionally harmed a classmate made the other students at Mugen Academy avoid her entirely, leaving her isolated and friendless until she met Chibiusa.

In her everyday life, Hotaru is gentle, polite, quiet, and exceptionally intelligent. She enjoys reading and collecting lamps, has a strong memory, and is academically gifted despite her poor health. Her creator described her as delicate, quiet, precocious, and expressionless. Although she is physically weak and often needs careful handling, she is emotionally warm once someone reaches out to her, and she treasures the friendship that Chibiusa offers without fear or pity. As Sailor Saturn, her demeanor becomes far more solemn and withdrawn. She carries the weight of her role as a harbinger of endings, and this makes her seem distant or almost emotionless in battle, but her compassion is still present beneath the seriousness.

Her core motivation is a longing for friendship, understanding, and the chance to protect the people she loves. She does not want to be feared, yet she accepts that her nature is bound to ruin and renewal. Sailor Saturn is known as the Guardian of Ruin and Rebirth, and her destructive power exists as a counterpart to Sailor Moon's restorative power. Rather than acting out of malice, she sees destruction as a necessary last resort, a way to end a corrupted world so that a better one can begin. This sense of duty drives her to sacrifice herself without hesitation when the situation demands it.

Within the story of Sailor Moon S, Hotaru is unknowingly used by the Death Busters as a vessel for Mistress 9, who works to collect pure hearts and summon the entity Pharaoh 90. Chibiusa befriends Hotaru and refuses to abandon her, even when the Outer Guardians warn that she is dangerous. Sailor Uranus, Sailor Neptune, and Sailor Pluto are deeply afraid of Hotaru because her awakening as Sailor Saturn could destroy the entire planet, and at one point they consider killing her to prevent it. When Mistress 9 forcibly takes over Hotaru's body, Hotaru appears to be lost, but a final act of will allows her to awaken as Sailor Saturn at the climax of the season. Facing Pharaoh 90, she is prepared to destroy Earth along with the enemy, but she stops when she sees that Sailor Moon is still alive, deciding that such a drastic rebirth is not necessary. Instead, she uses her power to push Pharaoh 90 into another dimension and sacrifices her own life to ensure the enemy remains sealed away. Sailor Moon, using her own healing power, later restores Hotaru as an infant, and the child is taken into the care of Haruka, Michiru, and Setsuna.

Her relationships are central to her development. Chibiusa is her first true friend, and that bond gives Hotaru the emotional strength to rise above her role as a tool. Her father Souichi Tomoe is a tragic figure whose love for his daughter was exploited by the Death Busters, and his choices are the direct cause of her suffering. After her rebirth, Hotaru becomes part of a quiet family with Haruka Tenoh, Michiru Kaioh, and Setsuna Meioh, who grow to treat her with genuine affection. Her connection to Sailor Moon is also essential, as the two characters are presented as opposite halves of the same cycle, one ending things and the other giving them new life.

Over the course of the season, Hotaru develops from a fragile, isolated victim into a conscious hero who makes her own choice to fight. She moves from being controlled by outside forces to taking full responsibility for an immense and frightening power. In the continuation of the series, after her rebirth, she slowly grows up again, becoming a more playful and energetic child in the care of the Outer Guardians while still remaining serious and determined when it comes to her duty as a Sailor Guardian.

Sailor Saturn's abilities are among the most devastating in the series. She carries the Silence Glaive, a weapon that can destroy a world or reset the course of an entire solar system with a single swing. Her signature attack is Death Reborn Revolution, in which destructive energy in the form of ribbons surrounds her and wipes out everything nearby. She can also create a protective barrier called the Silence Wall, fire a concentrated blast known as Silence Glaive Surprise, and use the Rebirth Wave, a technique that can harm enemies or repair damage. She possesses minor healing abilities and has also shown the ability to glimpse the near future. Because of the sheer scale of her power, her very awakening was feared by the other Guardians, but in the end her strength is used not to end life needlessly, but to protect the world from a threat that no one else could stop.