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How Many "First" Loves Did Sailor Mercury Have?

Updated on August 31, 2025
Koriander Bullard profile image

A fan of the Sailor Moon metaseries since 1995, Koriander runs the popular fan-site Moon Sisters, moonlighting as Codename Sailor Earth.

These two enemies have a romantic past.
These two enemies have a romantic past.

A Heavenly King and Mercury's Princess

Ami Mizuno (Amy Anderson in the DiC dub, Amy Mizuno in the Cloverway dub) is a teenager with blue hair and a mix of water and ice powers. Ami loves her divorced parents dearly, idolizes her mom and is a perfect student. Initially quiet, she slowly grows into being a bubbly girl after befriending Usagi.

In Sailor Moon Crystal, Ami's sole love interest is Zoisite, commander of the Dark Kingdom's European division and the third revealed member of the Shitennou/Four Generals/Four Kings Of Heaven.

Sometime between her looking after Princess Serenity and Zoisite following orders from Prince Endymion, these two had a brief romance, but it ended when Zoisite was possessed by Queen Metalia and Queen Beryl and found himself on the wrong side of combat. After they were reincarnated on Earth, Zoisite again fell under the spells of the Dark Kingdom, and didn't get his memories back until shortly before Metalia killed him. This romance ended with Mercury sobbing while his spirit encouraged her to go find another boyfriend, an unnecessarily cruel end to a romance that barely even started.

In the manga, it was hinted that the two dated in their previous lives, but their romance barely got any time to cook, and exists in one graphic only.

In the 90s anime, Ami insists on forgoing a "normal" teenage girl life in favor of academics, the topic of romance bothers her to the point of breaking out in hives and she believes in waiting until after her school career is done with to even think about dating. But she technically has a few "first" loves.

Ryo Urawa: First boyfriend, but "not" first love?
Ryo Urawa: First boyfriend, but "not" first love?

A Rainbow Crystal Love

Ryo Urawa (Or Greg in the DiC dub) was the reincarnation of Bunbo, one of the Seven Great Youma/Rainbow Crystal Carriers and was a carrier of the yellow crystal, one seventh of Usagi's Silver Crystal.

Ryo was born with psychic powers, able to see the future, which allowed him to cheat his way through school and tie with Ami on tests. Unfortunately, he was also born with a pessimistic streak and a refusal to see that you can change the future.

Ami spent episodes 27 and 41 trying to teach him that last part, and while he still struggled with the idea, they did have a date at the amusement park.

The DD Girls would later use an image of him to lure Ami into a trap, but she saw right through it. But just as fans were ready to declare them couple of the year, Ryo was dropped from the anime, and after Ami calls him her long-distance boyfriend in the Super Famicom game Sailor Moon: Another Story, he is never mentioned again.

These guys-of-the-day don't even have names, but did they have Ami's heart?
These guys-of-the-day don't even have names, but did they have Ami's heart?

Honorable Mentions

In episode 37, Ami enrolled in Countess Rose's princess seminar, one of the rare times the 90s anime teased the fact that Sailor Mercury is the crown princess of the planet Mercury before this revelation in the manga. We see her dancing with a brunette male. Some fans wondered if this mystery man was Ryo, but it was an employee of Countess Rose who guided Ami through a dance.

In episode 95, Daimon Die-Heart created an illusion of five handsome men to dance with the Inner Sailor Guardians. Ami seemed particularly smitten with a young man in glasses who ironically looked like a relative of an idol we would see again in Ami's First Love, but he soon turned into another Daimon who zapped Ami and trapped her until Sailor Uranus hit Die-Heart hard enough to make him evaporate.

Also of mention? In the manga, Ami seemed to have a minor crush on Motoki, but she never said anything about it.

Once bitter enemies, could there be sparks between Ami and Mamoru?
Once bitter enemies, could there be sparks between Ami and Mamoru?

The Rose Of Mercury

In episode 97, Mamoru offered a friendly ear when Ami was being harassed at school by the vice principal because she was helping Usagi study. While the two usually don't spend any time alone with each other and had previously been at odds, here, Mamoru gave her good advice, and Ami appreciated his company.

... So much so that she later teased Sailor Moon about stealing her boyfriend. What a way to thank a friend for bringing you back from the dead, right?

But some fans really liked this concept. After all, Ami and Mamoru both love studying, they both collect textbooks and both want to become doctors. If not for a relationship between the two destroying Chibiusa's existence, this doesn't seem like a bad ship.

Episode 144 was weird and uncomfortable for Ami.
Episode 144 was weird and uncomfortable for Ami.

Mercury Bubble Blast At The Beach

Episode 144 was an odd episode for Ami. All she really wanted to do was enjoy some good food and the cool ocean with her friends at the beach. But the girls were constantly being sexually harassed by every weirdo under the sun, so since Usagi couldn't get Mamoru to take the day off from work to watch over them, she asked her tween baby brother Shingo to strut around like a pimp and harass the guys back. Ultra creepy and unnecessary when you factor in his young age and the reality that Usagi, her daughter and her friends all have superpowers and really should be protecting themselves.

Shingo hated this, but forgave Usagi because Ami was one of the girls he had to stand up for, and he has a crush on her, likely over Mika by this point.

As Ami was dealing with Shingo following her around, she also had to contend with Tiger's Eye, who has set his sights on her. While the other girls fawned all over him, Ami rejected him, leading to Tiger's Eye stalking her, almost getting Shingo killed and helping himself to her dream mirror.

Neither Tiger's Eye nor Shingo go any further with Ami, but that didn't stop the internet from pushing both relationships.

Episode 151 could have been more.
Episode 151 could have been more.

A Waltz For Ami

In episode 151, Ami heard a few instrumental songs from an internet star using the pen name N.T. and she posted her own fan-made lyrics to an online bulletin board of sorts. (Message boards were the predecessor of social media platforms like Facebook.) Toshiyuki Noshino (N.T.) just so happened to be playing in town and was excited to meet Ami in person, inviting her to his studio.

Before you start thinking "stranger danger" don't panic! As Toshiyuki already seems to be partnered up with a pretty woman his own age named Kyouko.

While the episode positions Ami's running away as her being self-conscious because she doesn't take music as seriously as Toshiyuki thinks she does, most fans read between the lines and see that Ami likely had a little crush on him.

Manga fans remember Mercurius, but is he really what he seems?
Manga fans remember Mercurius, but is he really what he seems?

Ami's "First" Love?

In both the manga and the 90s special Ami's First Love, Ami finds herself bombarded with love letters in her locker from boys she's never met or seen before, making her break out in hives from the discomfort. Her angst is then exacerbated by a mystery student using the pen name Mercurius, who seems to be her rival when it comes to taking tests.

As Ami gets more frustrated, Usagi and the girls (incorrectly) assume that Ami probably has a crush on him, not realizing that she only wants to crush him out of existence. Ignoring Ryo, the girls label Mercurius "Ami's First Love". But Ami gets so unusually obsessed that she even confuses the genius loci Bon'non for him, decimating her with full force.

Thinking that he's dead, (until he matches her on the next test) Ami does start to wonder what he was like. The girls show her a poster of an idol she says looks like a young Albert Einstein to deflect from the reality that the real Mercurius was just a goofy kid named Kurume Suri who spelled his name backwards on his tests.

Taiki - contentious beau or friendly rival?
Taiki - contentious beau or friendly rival?

A Song From The StarS

Taiki Kou initially caught Ami's attention because she was the only student who could match - or even beat - Ami on every test.

In Sailor Moon Cosmos and in the manga, this irritated Ami, prompting her to see Taiki as her rival, but in the 90s anime, Taiki became something of an interest for her.

At first, Ami admired Taiki, but the more the teen idol opened her mouth, the more the two found themselves at odds, mainly because unlike her more friendly demeanor in Cosmos, 90s anime Taiki was cruel, squashed dreams and had to be pressured into finding the good in humanity.

Makoto Kino: Best friend or future wife?
Makoto Kino: Best friend or future wife?

A Flower Hurricane Wedding?

In episode 147, Ami saw that the guys were ignoring Makoto at a dance they had been invited to, just because she is "too tall" at five feet, six inches. Not interested in searching for a date, Ami offered her hand and had a killer dance with Makoto to cheer her up, which ended up wowing the crowd.

Ever since this episode aired, fans worldwide have wanted to see these two walk down the aisle, and when Usagi got married at the post-credits of Sailor Moon Cosmos Part 2, MakoXAmi fans cheered, seeing them in wedding dresses, holding hands.

Are they really married to each other? No, but the two are constantly together and have such good chemistry that fans would believe it if they were.

Doctor Who? No, we don't mean the stellar BBC show, we mean who is the doctor Ami hooked up with?
Doctor Who? No, we don't mean the stellar BBC show, we mean who is the doctor Ami hooked up with?

Who Really Has Ami's Heart?

In the manga Parallel Sailor Moon, Ami is cold, violent towards Minako, chronically broke despite being a doctor, and married to an unseen doctor with a lookalike daughter who doesn't take handwriting very seriously, yet does enjoy studying and is also a Sailor Guardian.

What happened to that bubbly girl we first saw playing the Sailor V game with Usagi? And who did Ami marry? These questions remain unanswered, but whoever is this mystery doctor, they don't seem to be having a happily ever after.

Could it be a resurrected Zoisite? Mercurius with his name spelled right? Or maybe someone new the fandom wouldn't believe? Whoever it is, he's probably not Ami's "first" love, but fans hope for the best.

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2025 Koriander Bullard

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