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Mamoru Chiba (地場衛, Chiba Mamoru) is the present-day incarnation of Prince Endymion and the civilian identity of Tuxedo Mask (タキシード仮面, Takishiido Kamen).



Mamoru has black hair and blue eyes. He usually wears a black turtleneck tucked in his indigo pants pulled up to his waist with a bright light brown belt, along with a green sweater jacket and black or dark brown loafers.

Tuxedo Mask

As Tuxedo Mask, Mamoru wears a formal black tuxedo suit with a black cape and a red interior. He wears a white mask and a formal long hat. He also wields a black cane and the red rose that he throws on his enemies. In Episode 81 at the finale of Sailor Moon R where he shields Sailor Moon from Black Lady's attack, both his hat and his mask were knocked off to show his true identity.

Mamoru carries the red rose when he transforms into Tuxedo Mask as explained below and upon meeting with the Outer Senshi in Sailor Moon S, he quickly transforms into this form while being covered in dead leaves being floated in strong winds.


Mamoru was an only child and had lived with his parents until the day of his sixth birthday when all three of them had been involved in a car accident, killing the parents, but leaving Mamoru as the sole survivor. However, the incident gave Mamoru retrograde amnesia, leaving him unable to remember anything about his life prior to the car accident.

He did, however, constantly have dreams about a mysterious girl begging him to find something called the "Silver Crystal". Believing this Silver Crystal would help him restore his memories, Mamoru would adopt the persona "Tuxedo Mask" and seek out the crystal for himself.

Sailor Moon

Mamoru first appeared in episode one of the series. After meeting Usagi for the first time, he started calling her "Bunhead," a nickname he'd call her by every time they met, much to Usagi's annoyance. It was also starting from episode one that he comes to help Sailor Moon in battle as Tuxedo Mask.

Mamoru's alter-ego as Tuxedo Mask caught the love of Usagi Tsukino/Sailor Moon after she saw him for the first time. In fact, Tuxedo Mask was one of Usagi's two main crushes along with Motoki. Although Usagi loved Tuxedo Mask, she didn't initially like his civilian identity, mainly because Mamoru always called her by the nickname "Bunhead" that she hated. At the time, she also didn't know who Tuxedo Mask's secret identity was. During season one, Mamoru briefly went out with Rei Hino, though he did not seem as infatuated with her as she was with him.

During season one, Mamoru was also on his own mission to find out who he really was. At night, he would dream about a mysterious woman known as the Moon Princess, telling him that all will be clear when he finds the Silver Crystal; he began searching for it, but coincidently, the Dark Kingdom was also searching for the Silver Crystal. Eventually, he discovered that the Rainbow Crystals would help him find the Silver Crystal, and he began to collect them. However, he preferred to keep the Rainbow Crystals rather than let the Sailor Senshi have them.

When the fragments reunited and became the Silver Crystal, it restored his memories, as well as those of the Sailor Senshi. He remembered that he was Prince Endymion of Earth who was together with Princess Serenity.

Tuxedo Mask/Mamoru, shortly after regaining his memory, was captured by the Dark Kingdom and brainwashed to do their bidding until the end of the season. He fought against the Sailor Senshi alongside Shitennou, Kunzite (although they bickered constantly), although they would frequently fight as Mamoru would subconsciously resist killing Sailor Moon. He was healed near the end of the season, but was once again brainwashed by Queen Beryl, who infused him with Metalia's energy permanently. After the Sailor Senshi die fighting the DD Girls, Sailor Moon fought with him. Despite being immune to Moon Healing Escalation, through Usagi's pleading, he touched the Orgel, returning his memories. However, he died shortly afterwards protecting Usagi from an attack by Queen Beryl. After Sailor Moon's final battle against Super Beryl, the Sailor Senshi (including Mamoru) were resurrected but lost all memories of events in the first season.

Sailor Moon R (Makai Tree arc)

Having lost his memories, Mamoru lived his normal life and unlike the Sailor Senshi, it took much longer for him to regain his memories. However, a part of Mamoru still had a heart for Usagi /Sailor Moon and so split from him and became Moonlight Knight, who took Tuxedo Mask's place.

During the Makaiju arc, Usagi tried to help Mamoru remember who he really was and win his love but was unsuccessful. Worse for Usagi, a new kid named Ann was also competing for Mamoru.

In episode thirteen of the season, the end of the Makai Tree Arc, Moonlight Knight reunited with Mamoru, restoring his memories. Ann, who Mamoru and the Sailor Senshi discovered were actually their enemies in disguise, left Earth along with Ail, leaving Mamoru open for Usagi.

Sailor Moon R (Black Moon arc)

With his memories restored, he and Usagi officially become a couple and Tuxedo Mask returned, but they soon find their relationship disrupted after the arrival of the Black Moon Clan and Chibiusa. During the Black Moon Arc, Mamoru began having dreams again much like the previous season. This time, a mysterious voice kept appearing in his dreams, telling him that if he were to be together with her, the world will perish. Mamoru didn't believe at first but soon became troubled. He temporarily broke up with Usagi, but still came to aid her during battle as Tuxedo Mask and hung out with her as normal friends. Usagi was, nevertheless, heartbroken. She thought Chibiusa was the reason for the breakup and once mistaken another girl, Motoki's sister, to be his new girlfriend. Mamoru would act very cold towards Usagi and once approached Motoki for advice on how to forget about Usagi. Eventually, Usagi did finally come to understand the real reason for the breakup and accepted it and they got back together.

Mamoru's dreams were finally explained after Tuxedo Mask and the Sailor Senshi traveled to 30th Century Crystal Tokyo and met King Endymion. It was revealed that the nightmares were sent by King Endymion, who used the dreams to test the bond between him and Sailor Moon, as their bond would be crucial to defeating the Black Moon Clan.

Mamoru, as Tuxedo Mask, continued battling the Black Moon Clan with the Sailor Senshi until the clan was finally defeated in the second to last episode of the season.

Sailor Moon S

With Usagi preparing for her high school entrance exams, Mamoru suggests they don't go on dates after she performs poorly on one of her tests, which leaves Usagi in tears. After Usagi loses her ability to transform into Sailor Moon after her brooch is damaged by a Daimon, Mamoru attempts to cheer her up by showing her an abandoned house full of stray cats. Tuxedo Mask protects her from the Daimon Nekonneru while she is unable to transform and tells Usagi to run away, but she refuses. Instead, she stands with him holding his hands and, when the Daimon attacks, it is completely repelled and their loves creates the Spiral Heart Moon Rod. On her birthday, Usagi got disappointed at Mamoru for not knowing what day it was, even though she never even formally told him when her birthday was in the first place. She wanted Mamoru to buy her a pair of glass shoes she liked. Mamoru eventually found out and bought the shoes, which Kaolinite infested with dark energy. The glass shoes turned into a Daimon, which Mamoru tried to defend Usagi from as Tuxedo Mask. Mamoru was temporarily captured but was freed by the Sailor Senshi.

Sailor Moon SuperS

Mamoru becomes very busy with his college thesis throughout the series but still continues to help Usagi on her mission. Near the end of the series, Queen Nehelenia begins to spread spider webs to shroud the earth in darkness, which causes Mamoru to feel pain. As his condition worsens, he was forced to stay behind after it was revealed from Pegasus that his entire body is in pain because he is physically linked to earth. It was also revealed that as Prince Endymion, he was the ruler of the Golden Kingdom near Elysion where he entrusted Helios with the Golden Crystal.

Sailor Moon Sailor Stars

In the first arc of the 5th season, when Chibiusa is about to leave for the 30th Century, Mamoru falls victim to the "shooting stars", which are actually glass shards from Queen Nehellenia's broken mirror. He accidentally gets one caught in his right eye, causing him pain. He begins seeing images of Nehellenia. This, along with the pain, causes him to become rather agitated, and even violent. During his date with Usagi in the park, he slaps her hand when she was trying to help him, but apologizes. He becomes irritated when his computer rings when he is working, and yanks out the keyboard. He remembers what Usagi said, and decides to take a rest.

When the Mirror Paredri attacks the Inner Sailor Senshi at Hikawa Shrine, Tuxedo Mask appears, only to be afflicted with pain in his eye. After the fight, Usagi and Mamoru walk back to his apartment. Usagi asks if he really is OK, and he assures her that if he rests, he will be better. He then enters his apartment. While washing his face, trying to see whatever is in his eye is out, Mamoru mentions that he feels that his body does not feel like his own. Queen Nehellenia appears to him as an illusion, with her assuring that she will take all that Usagi loves away from her. His right eye glows yellow.

Soon, he is completely entranced by the spell. Like most other people affected, he becomes obsessed with mirrors, constantly looking at them and buying several, refusing to live on with his current life. When Usagi enters his apartment to see if he is alright, she accidentally steps on a mirror, and he becomes mad. He then apologizes, saying that he hasn't been himself. Mamoru tells her that he is not well and will get some rest, but soon returns to the mirrors. Soon, the Inner Sailor Senshi discover that the illness going around and the mirror are linked, and rush to Mamoru's apartment, learning that he has been affected. After discovering that Nehellenia is behind everything, they burst into the room. Usagi tries to talk to Mamoru and help him, but he slaps her away. Nehellenia reveals herself and drags him with her into the mirror, completely unable to hear Usagi or anyone else.

For the next two episodes, Mamoru is kept in Nehellenia's castle under the curse. Usagi, without her power, desperately rushes to save him but has to undergo the effects of Nehelenia's curse, and for a short time, forgets about him and her mission to save. When Sailor Chibi Moon and Sailor Saturn reach Nehellenia's castle, Chibiusa desperately calls out for Mamoru. When it seems to work, Nehelenia heightens her anger and attacks them. When Usagi reaches the castle and suffers the disappearance of Chibiusa and the capture of her friends, she feels sympathy for Nehellenia. Her feelings break her nightmare, freeing Mamoru and everyone else. All use their powers to turn Nehellenia back into a child to start over.

After Nehellenia's defeat, Mamoru soon leaves for Harvard in America. Usagi decides to see him off with a smile, but truly doesn't want him to go. Before getting on the plane he gives her a promise ring and the two kiss. Soon, he is on the plane when suddenly a golden light appears and the plane explodes.

Usagi constantly writes to Mamoru after his departure, only to receive no reply. To cover up her depression and worry so she may not worry her friends, she dons a happy demeanor. She finally breaks in episode 194, when Seiya throws his red rose to stop Tin Nyanko, causing her to remember Mamoru and cries. In episode 197, after the plane bound to America exploded, it reveals that it was actually teleported into Galaxia's domain. Tuxedo Mask then meets and fights against Galaxia, only to have his Star Seed extracted. In his last words, he tells Galaxia that the Sailor Senshi will stop her. He mutters "Usako" before fading away.

Mamoru, along with everyone else, is revived in episode 200 and is reunited with Usagi.


Mamoru is very protective of Usagi and has a good nature.


During the episode Shadow of Destruction: The Messiah of Silence Awakens, Mamoru's lifeforce was linked to Chibiusa's to keep her alive after her Pure Heart Crystal had been consumed by the Messiah of Silence. While not exactly explained in detail, it was presumable Mamoru needed to hold her hand to sustain her lifeforce. Sailor Saturn later returned Chibiusa's Pure Heart Crystal to her, which likely ended the connection. While not powers in of themselves, Mamoru possesses roses which seem to have a supernatural quality to them; these roses are able to grind solid and other tough objects to a halt. Once, Mamoru used a series of roses against a Daimon, which seemed to create an energy barrier around it that was able to harm the Daimon. He was never seen performing this again in the series before or since.


Mamoru Chiba does transform into Tuxedo Mask in the anime, although he doesn't say anything to bring about his transformation. A brief transformation scene first appears in episode 19, where he seems to spontaneously transform without even actually planning to do so. However, this transformation was involuntary at the time and he did not recall any of his memories as being Tuxedo Mask. Later, in episode 34, there is an extended transformation sequence (although this is the only time it ever appears). For transformation, he uses an object that looks like a rose that is not completely bloomed yet; when used, the petals turn sky blue and crystallize. After his black cape flails in front of him, he is seen fully transformed (sans his hat). He then tosses his top hat into the air, which begins spinning before eventually landing on his head.

During a meet up with Setsuna, Haruka and Michiru, as they transformed into their Sailor Senshi forms, Mamoru transforms into Tuxedo Mask in a split second as soon as one of the leaves flew close past the screen.

During Restore Naru's Smile: Usagi's Friendship, Tuxedo Mask held one of the Rainbow Crystals. This caused light to emerge from it, transforming him back into Mamoru. It was at this point that he discovered his identity as Tuxedo Mask.


  • Throwing Roses
  • Cane Attack
  • Dreidel Attack From Sailor Moon S: The Movie

In episode 101, Mamoru threw a series of roses in a circle around Cenicienta, which created a barrier of rose petals that seemed to harm (or at least delay) her. This was unnamed and Mamoru has never used an attack like this or since in the anime.


Sailor Moon

Sailor Moon R

Sailor Moon S

Sailor Moon SuperS

Sailor Moon Sailor Stars




  • He is 16 at the start of the manga and was also planned to be so by Naoko Takeuchi. In the 1st anime, however, he is also confirmed to be a 17-year-old 1st-year University student (equivalent to a beginner college student in America). This is also stated in the anime's drama CDs.
    • Usagi starts the series at 14 in her second year of middle school, but ages to 15 by June 30. The Japanese school year begins around April 1, meaning she is not 14 for very long at all; only around a few months.
    • Usagi's age at the start of the series is confirmed by both Sailor Moon Crystal Episode 2 (Ami's age is also displayed as "14" at one point) as well as the later Sailor Moon Eternal Edition (2019) of the manga.
  • Mamoru has been captured and brainwashed the most throughout the series, probably due to how important he is to Usagi. Instances include:
    • In the first season, he was kidnapped and brainwashed by the Dark Kingdom from episodes 35-46.
    • In the first arc of the R season (episodes 47-59), Mamoru had lost his memories following the events of the first season, but there were no actions from the antagonists involved directly, but it still took him the longest to regain his memories.
    • In the third season, he was kidnapped by Kaolinite in episodes 101-102.
    • In the fifth season, he was taken control by Queen Nehellenia from episodes 167-172.
    • He was also kidnapped by Fiore in the Sailor Moon R movie.
      • This is to keep the focus on the female protagonists and the importance of the theme. One possibility of such is showing that not only male characters can save the world and that they also need and can depend on women. It is also likely is because of his importance to Usagi.
  • In the anime, Mamoru drives a red Alfa Romeo SZ.
  • Chiba is a part of the greater Tokyo area.
  • In the DiC English dub, Mamoru was named "Darien Shields" (the surname only appeared in the Mixx manga).
    • In early promotional videos for the first English dub of the anime presented by DiC, Mamoru was called "Mark."
  • Sailor Moon/Usagi loved Tuxedo Mask from the start of the series but initially disliked his civilian form Mamoru because he always called her "Bunhead", a nickname she hates being called by. ("Meatball head" in the original English dub).
  • Tuxedo Mask's costume was inspired by the famous musical The Phantom Of The opera which is about a mysterious man in a tuxedo with a mask. In fact, in the Sera Myu musical, Starlights Legend of the Falling Stars, the Phantom of the Opera is referenced a number of times.
  • Although his costume inspired by The Phantom of the Opera, it could also based on another "tuxedo wearing" character Arsene Lupin
  • A similar character would appear in the anime Medabots. The Phantom Renegade also had a mask and tuxedo, came out at night and whose identity was known to the main character although the Phantom Renegade was a more comical figure.
  • The villain Jazz Hands from the American Cartoon series Totally Spies! is the parody version of Tuxedo Mask but having a clown make-up on his face instead of having a mask.
  • Tuxedo Mask wasn't originally Usagi's sole crush. Originally, he was one of Usagi's crushes along with Motoki.
  • He was the first major protagonist to be turned evil when brainwashed by Queen Beryl. The second would be Chibiusa, who was turned into Black Lady by Wiseman.


  1. Nakayoshi Sailor Moon R Movie Memorial Album
Sailor Senshi

Solar System Sailor Senshi Sailor MoonSailor MercurySailor MarsSailor JupiterSailor Venus / Sailor V
Other Sailor Senshi Sailor Luna
Civilian Identities Usagi TsukinoAmi MizunoRei HinoMakoto KinoMinako AinoLuna Tsukino
Allies Tuxedo MaskLunaArtemis