Miruto

Miruto (Japanese: ミルト) is the main protagonist of the Pokémon RéBURST. She is a member of a currently unknown group whose job is to investigate the crimes of her region.

Plot
Miruto first appears when she is seen injured after falling off a mountain she was climbing. She soon meets Ryouga, who takes her to his village so that she can get first aid for her wounds. She later joins him when Ryouga goes to investigate the situation happening at Madoro town and saves his life when Ryouga was about to be killed by Commander Yaza. She witnesses Ryouga defeat Yaza and his gang with the power of his Burst and realizes that Ryouga combined with the legendary Pokémon Zekrom.

She later joins Ryouga in climbing Mt. Serables, mainly due to the fact that she is interested in a person that can combine with a Pokémon. When she becomes too tired to continue climbing, she is carried the rest of the way there by Ryouga until they are attacked by Major Hilgreitz, a member of the group Great Gavel. She watches the two Burst warriors battle each other and informs Ryouga of the seventeen different types of Pokémon when he finds out that his Electric-Type attacks don't work on Hilgreitz. After Ryouga defeats Hilgreitz, they all continue on their journeys and separate from Tougo.

Miruto and Ryouga continue traveling until they meet Yappy, a freelance journalist that aims to expose the evil in the world. After rescuing him from the wrath of an angry cook by paying the bill he skipped out on, Yappy offers to take them to a place where Miruto can earn money to replace the amount she spent on his bill. Yappy takes them to a cliff and pushes them down to the bottom of the Darmanitan inhabited valley. Yappy reveals to the two that he saw Ryouga use Burst and intends to reveal the idea of a Human-Pokémon to the world.

After Yappy is scared into falling down the cliff by a Darmanitan that snuck up behind him, Miruto beats him up while Ryouga uses Burst to try and fight off the Darmanitan. Soon, it is revealed that they were protecting some sick Darumaka; Miruto forces Yappy to heal the sick Pokémon with a Potion and they make their leave. Later that night, Miruto and Ryouga prepare to go to sleep after tying up Yappy; after falling asleep, Yappy takes Ryouga's glove and Burst Heart in an attempt to sell them. Miruto and Ryouga are awoken by a bright flash of lightning and go to investigate; they find out that it was Yappy after attempting to Burst without the training that Ryouga had gone through. They capture Yappy and tie him up again but Ryouga decides to instead let them join them much to Yappy's surprise and Miruto's annoyance.

Next, the group travels to Free Market City 'Karakuda' where they try the various objects being offered there while Miruto yells and Ryouga and Yappy for acting like idiots. After Ryouga rescues a small childfrom getting caught up in the fight between two Bouffalant, he takes a small plate as his reward. The plate soon reacts to Ryouga's Burst Heart and sends a light at a young man near them. Miruto, Yappy, and Ryouga are all shocked to see the young man attack them as soon as he sees the plate (now known as the Compass of Light).

The young man reveals himself as Hariru, a member of Great Gavel and that he is seeking revenge on Arcades, the person that Ryouga is searching for, after destroying his home village and killing his father. Hariru reveals his Burst, a Zorua, and he and Ryouga begin battling while Miruto and Yappy watch from the sidelines. Miruto watches as Ryouga is helpless and is defeated by Hariru's Illusions and powerful techniques. Hariru goes to kill Ryouga after defeating him but Miruto steps in and protects him; Hariru then decides to just take his Burst Heart instead. Suddenly, another of Great Gavel's Seven Warriors, Carola, appears from the sky and gives Ryouga's Burst Heart back to Miruto stating that it was "boss's orders." Miruto is shocked to see such a small child be a member of Great Gavel and is even more stunned when she suddenly approaches her, introduces herself, and menacingly tells her to not lose the Burst Heart until she beats them. The two then make their leave while Miruto wonders if it's all over; Miruto realizes that Yappy had gone missing.

After healing Ryouga, they realize that Yappy had taken the Compass of Light and rush off to go find him. They find Yappy in a small town at the mercy of a Burst Warrior named Rend. Ryouga first attacks Yappy for his misdeed and then goes to battle Rend. Miruto and Yappy watch as Ryouga is once again defeated but is given an offer to become stronger by Rend.

The next day, at Rend's house, Miruto and Yappy do various chores while Ryouga does his training. They are shocked to find Rend knocking Ryouga unconscious and actually sending his mind into his Burst Heart to better connect with his Zekrom. While Ryouga treks through his mind, Miruto and Yappy wait for him to wake up.

Eventually, Ryouga wakes up, much to Miruto's happiness and later embarrassment. She and Yappy watch Ryouga and Rend train to test Ryouga's newly-gained strength. After Rend is attacked by one of the Seven Warriors, Zengai, she watches Ryouga defeat him and they take Rend to get healed. After saying their goodbyes, Rend gives Ryouga his Burst Heart so they can use it in the Compass of Light.

After some traveling, the Compass of Light leads the group to a street performer named Rabine sleeping in the woods. After Rabine runs off, they chase him and end up in a small area with a vending machine in the middle. Yappy manages to figure out how to get it to move, revealing a secret passage underneath it. The group goes down the stairs and ends up in a tournament for Burst Warriors known as Burst Heart Survival.

There, Miruto and Yappy are captured by the navigator, Pauline, for not being Burst Warriors, forcing Ryouga to win the tournament so he can rescue them.