Tuxedo Mask standing full-length in his cape and top hat against a starry blue field, one arm held out to an enormous red rose beside him
Tuxedo Mask, bust.

Tuxedo Mask

“Tuxedo La Smoking Bomber!”

japanese name
Chiba Mamoru (地場 衛)
90’s english dub
Darien Shields
name meaning
protector of the earth-place
likes
reading, tennis, quiet
dislikes
being fussed over, showing weakness
birthday
august 3
zodiac sun sign
Leo
blood type
A
Takeuchi colour illustration of Mamoru in a dark suit and waistcoat, sitting alone in a row of red cinema seats with an open book in one hand, looking out at the reader

Mamoru Chiba lost his parents and his memory in a car crash as a kid and grew up with no past. His name, 地場衛 (Chiba Mamoru), means something close to ‘protector of the earth-place’: 地 is earth or ground, and 衛 means to protect. He keeps everyone at arm’s length, teases Usagi the first time they meet, and ends up as the person everyone else leans on.

As Tuxedo Mask he mostly holds his ground. He throws a rose to break a spell, catches Sailor Moon when she falls and lets her land the blow. He doesn’t really level up over the story. He just gets more reliable.

read the Earth page →read the Sun page →← back to character select

in hellenistic astrology

the sun

Takeuchi colour illustration of Mamoru standing in a black tuxedo, winking, a red rose held to his lips, with peacock feathers around him

Mamoru carries the Sun. In Hellenistic astrology the Sun and the Moon are the two lights, and they’re read as a pair. The Sun is the source of light. The Moon has none of its own and reflects the Sun’s. The tradition counts the Sun masculine and the Moon feminine. The Sun looks the same from one day to the next, while the Moon waxes and wanes, and the story casts Mamoru and Usagi the same way: he stays steady, and she’s the one who changes from arc to arc.

The story keeps taking the Sun away. The Sun signifies kingship, the father and the high priest. The story takes all three off the board, and Mamoru is out of the fight in almost every arc. In the Silver Millennium he dies defending the Moon Kingdom. The Dark Kingdom captures him and turns him against Usagi, and in the manga the Black Moon does the same. In the manga’s Dream arc the Dead Moon’s eclipse curses Elysion and he falls ill with it. In Stars, as he leaves to study abroad, Galaxia kills him and takes his crystal. Each time it happens in this life, he’s back by the end of the arc, once Sailor Moon has won the last battle.

dignity

Mamoru, Usagi and Chibiusa kneeling round a low red table, eating and smiling, with food splashed over the table and Usagi
domicile
Leoauthority and judgmentIts own house, and the Sun only has one. Leo is a masculine, fixed fire sign, and its quality is hot. Fixed signs are stable and slow to change. Leo falls in high summer, and the two lights were given Cancer and Leo because they fall in the brightest, warmest part of the year. At home, a planet uses its own resources and doesn’t rely on a host.In Leo the Sun’s own significations come through directly, such as authority and leadership, the mind and judgment, the father, and public life. It shows up as taking charge and taking responsibility, being seen and known, clear judgment, lasting friendships, and honours earned over time.
Tuxedo Mask carrying Sailor Moon in his arms in front of a crescent moon, his red-lined cape streaming out behind them
exaltation
Aries 19°courage and initiativeRaised up in Aries, a masculine, movable fire sign ruled by Mars. Its quality is hot, and movable signs start things easily and change quickly. Exaltation is a place of honour, where a planet’s significations are raised in standing. Aries begins at the spring equinox, when the days start to outlast the nights. It’s in trine to Leo, the Sun’s own sign, and each day-team planet is exalted in a sign trine to one of its homes.The Sun in Aries mixes its own significations with Mars’s force and the quick start of the sign. It shows up as leading from the front, taking the first step, courage and competition, fast decisions, and standing won through action.
Usagi at a green front door with her hand on the handle and her back to Mamoru, who leans against the wall with his eyes down
detriment
Aquariusdistance and delayOpposite its house. Aquarius is a masculine, fixed air sign ruled by Saturn. Saturn has the two signs furthest from the lights, in the coldest part of the year. Light belongs to the lights and darkness to Saturn, so the Sun is a guest in his sign here. Later texts treat a planet opposite its own house as hindered or in exile.The Sun in Aquarius mixes its significations with Saturn’s delays and limits. It shows up as authority that feels like a burden, recognition that comes late, leadership kept at arm’s length, being set apart from the crowd, and a father who is absent or lost early.
Close-up of Mamoru, sweating and wide-eyed, with Sailor Moon’s cheek close against his
fall
Libra 19°deference and approvalPut low in Libra, a masculine, movable air sign ruled by Venus. Fall is the sign opposite a planet’s exaltation, and there its significations lose standing. Libra begins at the autumn equinox, when the nights start to outlast the days. It’s Saturn’s exaltation, and the Sun’s heat and light sit opposite Saturn’s cold and dark, so where one is raised the other is lowered.The Sun in Libra mixes its significations with Venus’s pleasure and the weighing and balancing of the sign. It shows up as authority shared or handed over to keep the peace, decisions put off while things are weighed, leading through partnership and charm rather than command, and standing that depends on other people’s approval.
Tuxedo Mask with the Earth, drawn by Naoko Takeuchi
The Sun across the zodiac: domicile in Leo; exaltation in Aries; detriment in Aquarius; fall in LibraAriesTaurusGeminiCancerLeoVirgoLibraScorpioSagittariusCapricornAquariusPisces

The dashed lines join opposites: detriment sits opposite the house, and fall opposite exaltation.

the whole scheme, all seven planets →

condition

Mamoru in daylight under green trees, smiling a little
sect
the light of the dayWhether a chart is by day or by night is the first thing settled. Sect divides the planets into a day team led by the Sun and a night team led by the Moon, and Jupiter and Saturn are on the day team. In a day chart the Sun is the sect light, the light in charge, and the day-team planets are more at home and better behaved.In a day birth the Sun’s significations lead the chart, such as authority, the father, public life and standing. The triplicity lords of the Sun’s sign are read for the overall support of the life. In a night birth the Moon leads instead, and the Sun is on the day team without being in charge.
Mamoru walking past a cherry tree in full bloom with his nose in a book and more books under his arm
joy
the ninth placeA planet’s joy is the place where it’s gladdest to be, whatever sign it’s in. The Sun’s is the ninth place, called God. It’s a good decline, in trine to the rising sign. It signifies travel and being away from home, foreign lands, religion and priests, philosophy, divination and oracles.The Sun in the ninth shows up through these topics, such as long journeys and living abroad, faith and religious office, philosophy, and prophecy and astrology. The ninth also shares in the Sun’s authority, and some texts give it kings and sovereigns.

the earth and the sun

Prince Endymion

Prince Endymion is the Earth side. In the Silver Millennium he was the prince of the Golden Kingdom, so the planet is his by birth, and his name in this life says it again: the one who protects the earth-place. The Earth is the one body in the chart that doesn’t move. Everything else is measured from it, and that’s his job in the story too: stay put, hold the line, be the place she comes back to. He’s tied to the planet so closely that when its heart, Elysion, is attacked, he feels it in his own body.

Takeuchi’s full-length drawings of Prince Endymion, in dark armour and a black cape lined in red, and Helios, in white priest’s robes with the golden horn on his brow, standing side by side

Helios

Helios is the Sun side. His name is just the Greek word for the Sun, and he plays the part of the Sun the old texts call the high priest. He keeps Elysion’s golden light underground, where the Golden Crystal belongs. The Sun’s joy is the ninth place, the place of God, which covers priests, prophecy and religion, and that’s his whole life. An eclipse of the Sun is the Moon sliding between the Sun and the Earth, and when the Dead Moon brings its false one, he’s the light that gets locked away, reaching out only through a child’s dreams.

the earth

The Earth from space, a blue and green globe with a pale rim of light against the dark, from the 90s anime

The Earth is our vantage point, so it isn’t a body that appears in the chart. It’s the ground beneath us, and the centre the whole sky is seen from. In the ancient picture of the cosmos it sits still at the very middle, and everything else turns round it. What the Earth gives the chart is the horizon. The four angles are named from it: rising in the east, setting in the west, the midheaven at the top of the sky and the point under the earth. The fourth place is the part of the chart under the earth, the most hidden from wherever you’re standing, and it covers home, parents and private life. That’s where Elysion would sit.

powers and transformations

the same kit, every season

his transformationMamoru becomes Tuxedo Mask: top hat, white mask, cape and cane.
The rose from the 90s anime: one red rose on a thorned stem with a single leaf.
the roseThe rose is his signature and his signal. He throws a single red rose from the shadows, and it announces Tuxedo Mask before anyone sees him. It is a working weapon as well as a flourish. Driven into the ground, it breaks a hold, knocks a weapon loose, or buys Sailor Moon the half second she needs.watch it in the show →
Mamoru in his green jacket holding Chibiusa across his lap, a yellow glow around his hands
his healing handsIn the manga he can close a wound by touch, and the wiki puts this gift beside Hotaru’s. He does it without transforming, so the power belongs to Mamoru and does not come from the cape. He is also said to have some psychometric sense and to feel the well-being of the planet. At the end of the Dark Kingdom arc he uses that power to put the surface of the North Pole back. All of this is manga only, and the 90s anime never confirms any of it.
Tuxedo Mask in top hat, mask and cape, smiling, holding his black cane out at an angle
the caneIn the tuxedo he carries a black walking cane. He fights with it at close range, and he blocks and strikes with it.
Pixel sprite of the star locket.
the star locket & music boxA small golden locket that plays a music-box melody, tied to him and Usagi across their lives. It appears at the turning points of their story and is lost, found and lost again. It is a keepsake that holds on to the bond even when memory has been taken from one or both of them.
disguisesEvery so often he goes in disguise.

variations

Labelled by source. The manga is the primary text here. The anime, Crystal and the live-action series are separate continuities that sometimes disagree, and where they do, this site argues from the manga.

  • manga

    Tuxedo Mask

    Act 1
  • manga

    Prince Endymion

    Silver Millennium
  • manga

    King Endymion

    30th century
  • manga

    Moonlight Knight

    anime only
  • anime

    Tuxedo Mask

    season 1
  • crystal

    Tuxedo Mask

    season 1
  • pgsm

    Tuxedo Mask

    2003
  • Helios in the manga, drawn by Naoko Takeuchi
    manga

    Helios

    Dream arc
  • Pixel-art Pegasus, white with lilac wings and a golden horn
    manga

    Pegasus

    Dream arc
  • Helios in the 90s anime, head and shoulders, the city behind him
    anime

    Pegasus / Helios

    SuperS

elsewhere

Helios and the Sun

Mamoru’s planet is the Earth, and this is easy to get wrong. Takeuchi did not write the hero and heroine as a pair of Sun and Moon. He is Prince Endymion of Earth, his stone is the Golden Crystal and his kingdom is this planet.

The Sun belongs to Helios, the priest of Elysion, who arrives in the Dream arc as Pegasus. He is a separate character, and he will have his own seat on this roster in future.

a note on sources

This is written from the manga page. The 90s anime gives him much more screen time, a longer brainwashing arc under Beryl, and the Moonlight Knight material in R, none of which is in print. Where the anime is named above, it is from general knowledge and marked.

the English dub

Mamoru becomes Darien Shields. The dub makes him older and plays the romance considerably straighter, which removes most of the discomfort the original has about a high schooler and a fourteen-year-old.

✦ junk drawer

things in here:0035

odds & ends. old graphics, for fun.

  • Manga panel: Mamoru in his shirt with his tie blowing out and one fist raised, and Prince Endymion in his cape standing behind him
goes deeper

last updated july 31, 2026 · rebuilt from the manga wiki

Sailor Moon, its characters and all original illustrations are the creation and property of Naoko Takeuchi, first published by Kodansha; the animation is Toei's and the game sprites are Bandai's. This is a non-commercial fan page. Art appears here to identify the characters it discusses and to illustrate commentary about astrology, which is believed to be fair use. No ownership is claimed, and nothing here is licensed, endorsed or affiliated. Pixel art for Helios, the Asteroid Senshi and the Starlights is from the fan project Sailor Moon ES RPG by sawaii (sawaii.wixsite.com/smesrpg), used with thanks.