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"I am the Pretty Guardian, who fights for Love and Intelligence, I am Sailor Mercury! Douse yourself in water and repent!"
— Her stock introduction

Ami Mizuno (水野 亜美, Mizuno Ami) is one of the five original Inner Sailor Guardians of the Solar System, and was the 2nd Sailor Guardian introduced. Her Sailor Guardian identity is Sailor Mercury (セーラーマーキュリー, Seeraa Maakyuri). Her powers are based around water and ice, as well as intelligence and computers.



In Crystal, Ami retains the same appearance as she did in the manga: jaw-length bobbed blue hair that is a few inches above her shoulders and blue eyes. She wears her Juuban middle school uniform, coupled with a grey cardigan, short white socks, and brown penny loafers.

Sailor Guardian

Like the other characters, Sailor Mercury's appearance in the new anime is based on her appearance in the manga.

Sailor Mercury has short blue hair and wears a sailor uniform, with a blue skirt and light blue ribbon on her chest and another one on the back of her skirt. Her sailor uniform distinctly does not have padded shoulder sleeves like her teammates. She has blue knee-high boots with short heels, as well as white elbow-length gloves, with blue on the ends, and wears blue stud earrings - three in her left ear and one in her right. Just like the other Sailor Senshi, she wears a tiara on her forehead, with a stone of her signature color (blue in Sailor Mercury's case) in the center of it.

As Super Sailor Mercury. Her choker had a yellow star with a blue gemstone in the center attached to it, the center of her front bow was a heart, the bottom of the shoulder pads was translucent, her earrings were three blue studs, the back waist bow was enlarged and lengthened.


Ami was an only child who lived with her mother Saeko, a respected doctor, and her father, a painter. However, her parents would undergo a divorce, leaving Ami in her mother's custody while her father would become a freelance artist.

Ami longed to become a doctor like her mother and grew to be a very intelligent girl to the point of becoming a national genius. Unfortunately, her peers would become envious of her and mistake her shy demeanor for snobbishness, assuming Ami thought she was too good to associate with them. This alienation would cause her to live a very lonely life.

Dark Kingdom arc

Ami makes her debut appearance in Crystal, although it was in a non-speaking cameo, at the very end of episode one, where she retreats for cover at Juban Public middle school as a rainstorm begins to occur.

She reappears in the 2nd episode, in which she becomes Sailor Mercury for the first time in Crystal. In this episode, she is seen as a shy girl with hardly any friends. When Usagi meets her, they hit it off well. She is soon brainwashed by the Dark Kingdom at the Crystal Seminar, but is snapped out of it when Usagi as Sailor Moon is in danger. Seeing Sailor Moon in danger allowed her to awaken her powers, and she transformed into Sailor Mercury. After she had transformed in Act 3, she used her unusually strong Mercury Aqua Mist attack to defeat Jadeite by covering his vision with fog and steam. This allowed Sailor Mars to defeat him by combining her innate spiritual powers with her fire/flame-related attack to purify evil forces.

Later on, she was given special goggles that enable her to scan for enemy activity and figure out complex situations very easily. She can use her head microphone to communicate with her fellow Sailor Senshi.

Black Moon arc

Granted even greater strength and powers from her mystical Star Power Stick, Sailor Mercury is a lot stronger than before. Her attacks related to the element of Water are even stronger and more effective. Unfortunately, she was no match for Beither's own hydro-kinetic abilities and was trapped by her water orb, and therefore, taken captive.

Upon awakening in the Chamber of Darkness, she succeeded in regaining her full strength and abilities with the aid of Sailor Moon's power and teleported beside her in a streak of light blue light. She used her newest and stronger Shine Snow Illusion attack against Prince Demande and Rubeus, but was unable to break through the sinister shield created by Wisemanhimself. Fortunately, she escaped with Sailors Moon, Mars and Jupiter back to where Sailor Pluto and Sailor Venus were waiting.

She was unable to do anything as Prince Demande took the Silver Crystals of both the past and future; about to merge them together. She regained consciousness and saw that everything had stopped in its tracks and came to realize that Sailor Pluto had used her power to stop all of time, thus breaking the third taboo. She was astounded when Chibiusa broke free of Black Lady's influence and awakened as Sailor Chibi Moon. Mercury watched sadly as Sailor Chibi Moon ran to Sailor Pluto's side, saddened at the sacrifice her dearest friend made for them. She then joined Sailor Moon, Sailor Chibi Moon, Tuxedo Mask and the other three Sailor Guardians to destroy Death Phantom, who had finally revealed his true self. With the awakening of Neo-Queen Serenity, Mercury was given much stronger powers as the Guardian of Wisdom with planet power.

Infinity arc

From the new planet powers granted by Neo-Queen Serenity, Mercury is stronger than ever. Her most recent water-related attack is Mercury Aqua Mirage, which covers her enemy in a swarm of very cold water. When a brand-new monster took control of a young girl from Mugen Academy, Mercury used her goggles to scan for any weaknesses. With her new and stronger abilities, she attacked the Daimon but it was too strong for her newest water attacks. She noticed two shadowy figures nearby but was unable to see far enough to identify them.

Sailor Guardian Info

As the Sailor Guardian of Water and Intelligence, Sailor Mercury has attacks related entirely to liquid water as well as ice, snow, frost, sleet, mist, steam, fog and cold. Her steam/mist/fog-related attacks enable Mercury to blind her opponents and using a cover for her comrades to use the element of surprise. She is capable of freezing monsters in solid ice and frost and dousing them in very cold water. She can also create strong waves and whirlpools, and even freeze her enemies in cylinders of solid ice and snow.

Like the other Sailor Senshi, she can create an exceptionally strong, bright blue force field for protection; capable of withstanding extensive damage of energy-based attacks and also flying and levitating. Another useful ability she possesses is teleporting herself and others to another extra-dimension entirely; one that is separated from Earth (an ability that she did not possess in the original anime). To utilize this strong teleporting ability, she calls out Hyperspatial Sphere Generate.

She is the smartest and most knowledgeably intelligent of the Sailor Team and has a miniature supercomputer that lets her figure out complex situations easily, and goggles that enable her to scan enemy territory for hidden traps, and revealing the vulnerabilities of enemies.






  • Unlike the anime, and the first act of the manga, Ami makes a cameo appearance in the first episode of Crystal, in the same vein as in PGSM.
  • Ami appears to be more sociable in Crystal compared to other versions
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

Solar System Sailor Senshi Sailor MoonSailor MercurySailor MarsSailor JupiterSailor VenusSailor Chibi MoonSailor PlutoSailor UranusSailor NeptuneSailor Saturn
Civilian Identities Usagi TsukinoAmi MizunoRei HinoMakoto KinoMinako AinoChibiusa TsukinoSetsuna MeiouHaruka TenouMichiru KaiouHotaru Tomoe
Allies Tuxedo MaskLunaArtemisDiana

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