People view Amu Hinamori as a "cool and spicy" girl; she is actually timid and easily scared. When she wishes to have the courage to show her "true" self, she discovers three colorful eggs -red, blue,…

Nadeshiko Fujisaki, queen of the school, invites Amu to tea at the Royal Garden, where she'd meet the Student Council Guardians. However, during P.E. class, the blue egg begins to hatch, and its' Guar…

Nadeshiko tells Amu that the two should become friends, but Amu sees it as a trick to get her to join the Guardians. Ikuto Tsukiyomi, the mysterious stranger from last time, interrupts the two and att…

Amu joins the Guardians as "The Joker", much to her dismay, and they inform her about the mysterious X Eggs. Ikuto tries to make amends with Amu. A mysterious new teacher named Yuu Nikaidou joins Amu'…

Amu and Nadeshiko attend Kukai's soccer team practice. One of Kukai's friends, Yamada, is deeply upset when the coach announces he didn't make it to the team. Nikaidou takes advantage of Yamada's feel…

Amu accompanies Yaya to the guardian's ballet class. During practice, the class's prima Maika Himekawa sprains her ankle and Yaya is chosen to be Maika's stand-in for the upcoming performance. Meanwhi…

Amu takes her little sister, Ami, with her to a guardian meeting. While the Guardians hold their meeting, the Guardian Characters play with Ami and find a treasure map to a magical egg protected by a …

Amu encounters Misaki Watarai, an energetic girl who is also in love with Tadase. After Saaya Yamabuki, head of Tadase's fan club, chides Misaki for Misaki's energetic personality and misunderstanding…

Nadeshiko invites Amu to a sleep over so that the two can get to know each other better. But in order to keep Ami home, Amu makes up a story about the Seven Mysteries of the Fujisaki house. As Amu arr…

Ami wants to decorate a Christmas tree with Amu, so after school, Amu and the Guardians shop for decorations. As the group leaves the store, Yoru steals Su's decoration and Su is separated from the re…

The Guardians go to a winter training camp and stay with Kukai's grandfather, who is the priest at a temple near a ski resort. The Guardians enter a snow-sculpting contest, each building a part of a c…

Amu goes shopping with Nadeshiko and Yaya for a Christmas party. When Amu sees a music video by Utau, Yaya informs Amu that Utau is a new idol singer. Elsewhere, Utau is practicing her performance, bu…

Amu and the Guardians go to a live New Year's concert where Utau will be performing. While waiting, the Guardians realize that the Easter Company is the sponsor of the concert. Amu also sees Ikuto and…

The fifth and sixth graders are being taught how to snowboard by a top snowboarder in Japan, 11-year-old Mifuyu Torii. Amu's Guardian Characters detect that Mifuyu is about to create a powerful Heart'…

The Guardians learn that Snoppe is missing and set out in search for her. However, there is not much time left before Mifuyu competes. Meanwhile, Nikaidou analyzes Mifuyu's X Egg in a remote cabin, bu…

The Guardians meet with child magician Zero, who is also fourth-grade student at the school named Takuya Nakagura. Takuya tells the Guardians about how he loves performing magic. However, as he became…

Nikaidou plans to use the next X Egg to create the Embryo and selects Kukai as his next target. Meanwhile, Amu is selected as the speech contest representative. The other Guardians lend their aid, but…

Tadase invites the other Guardians to an aquarium, however, only Amu is able to go. Amu begins to panic as the trip turns into a date with Tadase but she eventually calms down. As Tadase is about to t…

On the way home from a park, Amu's parents get into an argument about when they first went on a date. Eventually, they make up, but when they search for the photo Amu's father took when he first met w…

Kukai introduces Amu, Nadeshiko, and Yaya to his childhood friend, Sion. Sion is an aspiring pianist and will be leaving town soon to challenge her skills. On the way home from School, Kukai runs into…

Amu is home alone while her parents go to Ami's school play. Her parents ask her to sign for a crab, that was sent by her grandmother. After a bad encounter with the crab where Miki is caught, Amu goe…

The Guardians offer to help Amu find her eggs. They run into Utau and Saeki Nobuko, the spiritualist, along the way. Saeki can see the Guardian Characters and is at first frightened by them. However, …

While awaiting Amu to arrive, Su convinces Nikaidou to let her clean up the messy laboratory and make a fresh cup of coffee. While cleaning, Su discovers an old photo of Nikaidou when he was a boy and…

Amu's class is assigned to draw a composition about their favorite place at school. Amu also learns that Nikaidou has returned to the school as an actual teacher. As she visits various locations aroun…

Nadeshiko tells the Guardians that she will be leaving for England soon. Meanwhile, Amu is having trouble deciding whether she is in love with Kukai, Tadase, or Ikuto. Amu goes to the Royal Garden to …

The school year ends, but Amu is depressed because Nadeshiko has left and Kukai will be graduating. To help cheer her up, Kukai teaches Amu a new move for Amulet Heart. Later that night, Ikuto wanders…

A new school year begins and Amu wakes up to find a yellow Guardian Egg with a diamond pattern in her bed. Meanwhile, Utau steals more Heart's Eggs during a concert. This results in an argument betwee…

Amu tries to catch her X Egg, however she literally bumps into El and takes El home. The next day, the new Guardians are announced. Rima is the new Queen's Chair and Kairi Sanjo is the new Jack's Chai…

Kukai comes back to visit the Guardians. He notices that Amu is feeling down, so he decides to ask her what is wrong. As they talk, they encounter Utau. Utau shows Amu that she has Amu's diamond egg. …

The Guardians attempt to capture an X Egg, but Rima destroys it instead. Amu scolds Rima for not following the plan, but Rima thinks that Amu's methods are foolish. The next day, the Star and Moon cla…

Yaya convinces the Guardians to hold a special meeting at her house. It turns out that Yaya just wanted the Guardians to help babysit her baby brother, Tsubasa, because she does not want to. Yaya is j…

When Rima gets stuck with organizing the class's book collection, Amu stays behind to help out. Rima asks Amu to call her by her first name, and vice versa. While cleaning, Amu finds a popular gag com…

Tadase and Amu go shopping together as Kairi follows them in order to spy on Amu. Amu sees a bracelet that she likes, but Tadase buys Amu a black heart-shaped barrette. Tadase buys himself and Amu ice…

The Guardians decide to investigate a house that is alleged to be haunted. However, Amu is scared of ghosts and does not want to go. Rima bumps into a boy at school who drops a small photograph of his…

Amu's family receives a wedding invitation from Amu's cousin, Shuu. They go to the hotel where Shuu works and Amu finds him in the kitchen. Shuu's dream is to be a patissier and he is excited about hi…

Shuraiya, a prince from a faraway country, makes a grand entrance to Seiyo Elementary to search for his future queen. Shuraiya also has a Guardian Character, Ramira. After seeing Amu transform into Am…

The pendant Shuraiya receives from Utau begins to change his personality. Pearl, Shuraiya's servant since childhood, finds Ramira suffering because of the pendant's dark energy. She brings him to the …

Yukari tells Kairi to obtain the Humpty Lock from Amu. During a meeting, Kairi stares at Amu and the other Guardians believe he is in love with her. The next day, the Guardian Characters hold a secret…

Easter is implementing its new project, the Black Diamond CD. It is rumored that a person will have their wish granted if they listen to it. Kairi slips one of the CDs into Tadase's bag. Tadase and Ki…

As Kairi cooks for Yukari, she informs him that he has one last job to complete. Meanwhile, Rima's mother wants Rima to resign from the Guardians because of the shifting pickup times. At school, Amu i…

The secret behind the Black Diamond CD is revealed and Kairi is conflicted about his sister's plans. Il becomes frustrated because Utau has been ignoring her recently. Meanwhile, the Guardians come to…

Yukari reviews her plan to find the Embryo to her supervisor. Afterwards, she remarks about how useless Il is. Il becomes furious, but Diamond reminds Il about how Il teased El for being useless. Tada…

With the X finally removed, Amu and Diamond Character Transform into Amulet Diamond. Utau becomes depressed that she lost to Amu, but Ami appears and helps reminds Utau of her joy of singing. Yukari l…

It is summer vacation and Amu reflects on the time since the school year began. Meanwhile, Kairi is preparing to go back to his parents while reflecting on his time with the Guardians. Later, Amu, Yay…

During attendance day, the Guardians announce that the school will be participating in a choir contest. Amu ends up with the lead part while Marimo is chosen as the pianist. Because Seiichiro is a bad…

Rima wins two tickets to her favorite comedy show and asks Amu to come along. As Amu and Rima pass by a park, they see a girl, Miyako, practicing her comedy act. Rima, unsatisfied with Miyako's perfor…

While Amu is busy with her summer homework, she receives a call from Yukari. Yukari asks Amu to be Utau's manager for the day because Yukari is sick. Amu grudgingly accepts and accompanies Utau to the…

Summer vacation is over and the Guardians return to school. Tadase thinks Yaya needs special training and asks Kukai to help. When a group of third graders come to the Guardians for help finding a los…

Amu runs home and encounters Ikuto playing his violin. While Ikuto plays, Amu sings until one of the violin's strings breaks. Having no spare string, Ikuto and Amu go to a violin shop for repairs. At …

One night, Kiseki sees the Embryo fly past him, but thinks it was just the moon. When Ikuto sees the Embryo the next day, he realizes that it is attracted to other eggs. Later, Kiseki tells Miki about…

In a dream, Diamond asks Amu if she knows what her true wish is. Thinking about this, Amu encounters Nikaidou and Yukari. Nikaidou informs Amu that the Embryo should appear tonight. While the Guardian…

Amu and her Guardian Characters are on their way to school when they see a girl taking water to a flower. Amu comments on how kind that is. The girl gets flustered, and trips and almost crushes the fl…

The anime starts with Rikka, the new transfer student, waking up with dozens of X Eggs trying to wake her. She tries to purify the eggs from remembering Amu doing Open Heart in the previous episode, b…

Amu takes Rikka and Hikaru to an Utau concert and takes them backstage to let them meet her. Rikka becomes embarrassed and tells her when she hears her songs, she feels re-energized. Amu tells Utau th…

Amu and Tadase arrange for Hikaru to take care of a rabbit. When he tries to feed it, he gets bitten and calls Amu a liar because she said it was tame. Ran, Miki, Su, and Diamond explain to Hikaru tha…

Hikaru and Rikka are helping Yaya take care of the flower beds. Yaya is working hard to take care of the flowers, along with Hikaru and Rikka. Amu and her guardian characters notice and say it's a lit…

Rikka gets distracted from working in the Royal Garden, and goes off to get Yaya and Hikaru at the flower beds. Ran, Miki, Su, Diamond, and KusuKusu were asked to go with her so she doesn't get distra…

Amu and Rima come across a poster, much to Amu's surprise, announcing an upcoming performance by Nadeshiko just as Nagihiko comes along and is dragged into a predicament. Amu pleas to him that she wan…

Amu and Tadase are on their way home when Yoru sends Amu a picture of Ikuto sleeping, and causes her to blush. When Tadase asks Amu to join him to the park, she tries to hide her nervousness. Ran then…

Rikka drags Amu to the flower beds, showing her the new buds that have grown. Rima follows them and says that they need to thin out the flowers, because the buds can't absorb sunlight properly if they…

Amu, Ran, Miki, Su, and Diamond overhear Tadase talking to Kukai. He says that there is a girl he that is always on his mind and he can't sleep at night when he thinks over her. He also says that she …

Hikaru's Grandfather gives him a brand new fountain pen, as a gift for joining Seiyo Elementary School, but he says he doesn't use a fountain pen but keeps it anyway. Rikka loses her special treasure,…

It's finally Sunday, but Amu has a ton of homework to do. However, Amu's mom and dad both have things to do so they leave Amu to tend to Ami, along with household chores. Amu says she has no choice bu…

Amu and the others follow after their Guardian Characters when they sense something strange, and come across a young girl who has lost her heart's egg. The girl is holding a broken stuffed animal in h…

Rikka continues to think about what kind of person she wants to become, but she can't come up with anything. Amu and the gang try to give her suggestions, but she just gets frustrated. Just then, an X…

Rikka's friend, Kimi tries to read her hand, and asks Hikaru if he want to do it too. But he thinks its unscientific which upsets Kimi. Rikka talks to Hikaru about why did he hurt Kimi, and he asks if…

Rikka is excited to have her Guardian egg, and she tries to get it to hatch. However, it does not. She goes to school and tells Yaya, Amu and then Nagihiko, which immediately ends when people realize …

As Hikaru is researching the bar, Amu, Nagihiko, and Rikka comes by and helps Hikaru, telling him to just try and that he might have fun. Mainwhile, a X Egg who is from the volleyball team comes by an…

Amu and Hikaru all head out with Rikka's family together for a picnic, but Hikaru doesn't seem to understand what's so fun about it. But as he spends time with Rikka's mom and dad, Hikaru starts to un…

Utau storms out of a recording session for her new song because the director tells her to sing in some other way but she refuses, and goes to eat ramen with Kukai to cool her head. But when even her f…

Rikka worries about her egg because it didn't hatch yet. She becomes depressed and her egg got a X on it. She wants Amu to purify it but, she thinks Amu will hate her because her egg has a X on it. Th…

Rikka rushes to school and informs Amu that her egg has hatched. Hotaru, who is Rikka's guardian character, gets along with everybody. The Guardians tell her that next year she will become a full-fled…

Amu and Rikka notice that Hikaru never laughs or shows any facial expression, so Amu decides to take Hikaru out to an amusement park to try and make him laugh.

Rikka is getting closer and closer to Hotaru, and starting to ignore the X Eggs. Amu the other Guardians are getting ready for graduation, and Yaya's sad that she won't be the youngest anymore. Hikaru…

Amu and Tadase separate with the rest of the guardians and make their way to Rikka's room, inside, they find her room all messed up and torn. They notice Rikka hunched over crying as she explains that…

Ikuto explains to amu that he is back in town to fill out papers to join an orchestra. Amu's mom comes into Amu's room and Amu finds out that Ikuto was there with her permission. He takes Amu out to t…