Yu-Gi-Oh! HEARTZ

'''Yu-Gi-Oh! HEARTZ''' is an anime series that is a spin-off to Yu-Gi-Oh! It takes place after SEVENS.

Summary
The series starts off with an energetic and vibrant girl named Crystal Yukiko, who attends a school for future duelists called New Duel Academy, where it is run by six of the famous Duelists: Yugi Muto/Yami Yugi, Jaden Yuki, Yusei Fudo, Yuma Tsukumo, Yuya Sakaki, and Yusaku Fujiki. There, Crystal will face many challenges and duel through her new school life to become the first Queen of Games. But she won't do it alone as with the help of her new friends, the professors, and even her spirit partner, the Performapal Whim Witch, Crystal will have to pump to it and show the world that even cute and cool monsters can be as strong as any monster set in a duel!

Main Characters
Crystal Yukiko/Aiko Yukiko

The main protagonist of the series who attends the New Duel Academy to become the first Queen of Games. Crystal has a strong, tomboyish, and energetic personality that gets her heart pumping in a duel, but is shown to love cute, cool, and colorful things such as stuffed toys, flowers, and animals, has an appetite for sweets such as the cafeteria's cakes, and has great artistic skills as she can be seen sketching under a tree when she is not dueling. She also keeps a schedule for her after school activities that involves studying, running, shopping, and taking care of her spirit partner. When attending the Fusion dueling class, Crystal is shown to have a crush on her Fusion professor who is the head of the Fusion dorm, Jaden Yuki, because of his brooding and cynical looks and his smile. Her ace monster is the Angelic Heart Witch and her spirit partner is the Performapal Whim Witch (which is a gift from her former owner, Yuya Sakaki the professor of Pendulum dueling and head of the Pendulum dorm). In Season 1, Episode 7, she becomes the school representative after dueling her rival, Janet Black.

Selena Pureflood/Cho Emiko

A shy and kindhearted duelist who is Crystal's best friend and spends her time reading and studying rather than dueling. She is shown to have difficulties with social people, until she meets Crystal, who helps her out of her shell and encourages her to give dueling a try. Her deck contains butterfly-themed monsters, spells, and traps.

Karen Fiery/Akako Daitan

A red haired Fusion duelist with a short temper but a big heart who is an expert at Fusion as well as Jaden Yuki, who she looks up to since seeing his duels from Duel Academy on TV when she was a child. She is an athletic girl that won five gold medals in a row during the Olympics and held the record for longest running distance. Her deck contains fire-type monsters, spells, and traps.

Janet Black/Asuka Arisu

An arrogant jet black haired girl with a deck that holds dark-type monsters, spells, and traps that can easily scare her opponents, but not Crystal Yukikio, who was attempted to duel her when she saw Selena getting picked on by her and her friends. She is shown to belong to a rich family that pushes her too hard to become the Queen of Games, but Crystal stood up for her when she lost in another duel against her and soon, starts to slowly warm up to her, despite having to hide it with a snarky expression.

Percy Bud/Eichi Botan

A good looking and smart tolerant boy who knows about different types of plants, flowers, and trees and has a knack for animals. He is shown to have a crush on Crystal because of her way of sticking up for others and for her heart pumping determination. As a child, he lived with his mother who taught him about the ways of nature and gifted him his first plant card, the Botanical Lion, who is his spirit partner. Like Crystal, Percy has the ability to see and hear Duel Monster Spirits.

Mindy Lucksworth/Lala Hana

Professors
Yugi Muto (Yami Yugi)

The King of Games with a strong deck that helped him defeat many villains like Maximillion Pegasus, Seto Kaiba, and Marik. He is the headmaster of New Duel Academy, the head of the Standard dorm, and the teacher of Standard dueling.

Jaden/Judai Yuki

The red flaming hot and handsome duelist with the best luck to win a duel and is an expert on using Polymerization spell card to fuse his duel monsters together into a stronger monster. He is the professor of Fusion dueling, the head of the Fusion dorm, and he is also Crystal's crush.

Yusei Fudo

The mature and stoic duelist who can burn rubber when riding his Duel Runner bike and has no problem Synchro summoning his monsters in a duel. He is the head of the Synchro dorm and the professor of Synchro dueling.

Yuma Tsukumo

Locations

 * New Duel Academy: A school building where duelists in training go to learn how to be great duelists like their heroes.
 * Card Shop: A shop where students go to buy not just cards, but also accessories, clothes, and other items.
 * Cafeteria: The cafeteria where all the students eat breakfast, lunch, and dinner. It also includes a cafe called Sweet Duel Cafe that sells sweets such as Crystal's favorite cakes she buys.
 * Sweet Duel Cafe: A sweets cafe that sells different types of sweets like cakes, cookies, and more.
 * Standard Dorm: The royal purple dorm for Standard duelists
 * Fusion Dorm: The flaming red dorm for Fusion duelists
 * Synchro Dorm: The navy blue dorm for Synchro duelists
 * Xyz Dorm: The ruby red dorm for Xyz duelists
 * Pendulum Dorm: The emerald green dorm for Pendulum duelists
 * Link Dorm: The electric blue dorm for Link duelists
 * Track Field: A running track where Crystal goes out for her morning and afternoon running.
 * Paradox Prep: The rival academic school of students who are training to become Malefic duelists like Paradox, but in truth, they are being brainwashed into destroying Duel Monsters.