Ai is a little girl with lightly tanned skin, brown eyes, and shoulder-length brown hair, which is worn in pigtails with red hair ties. She wears a pink shirt with long sleeves under a wine-colored dress, and yellow socks. When outside, she wears pink sneakers with white soles.
When Impmon goes to see the siblings, Ai ties her hair with light blue hair ribbons and wears a white T-shirt under a blue dress, and light pink socks.
After the final battle against the D-Reaper, she wears a pink zippered jacket with long sleeves, a pocket on each side, and a white collarneck above her clothes, and carries her D-Power on a white cord around her neck.
Mako is a little boy with light skin, brown eyes, and brown spiky hair. He wears a white shirt with long sleeves under a blue jumpsuit with a red pocket on each side, and green socks. When outside, he wears green sneakers with white soles.
When Impmon goes to see the siblings, Mako wears a green T-shirt under a light brown jumpsuit with a yellow pocket on each side, and white socks.
After the final battle against the D-Reaper, he wears an orange zippered jacket with long sleeves and an orange neck above his clothes.
Ai and Mako are siblings who lived with their mother and Impmon. One day, they fought over their toys and also over Impmon, each telling the Digimon to teach the other a lesson. The two end up pulling Impmon by his arms. At some point, Impmon fled from their home, and the siblings' actions end up making Impmon think Digimon don't need humans. Some time later, they are fighting over a teddy bear and are seen by Impmon from the next house's rooftop. Their fight ends up ripping the teddy bear's arm, upsetting them.
After returning to the Real World, Impmon finds Ai and Mako deeply ashamed at how they had acted and missing him terribly, and they beg the Digimon for his forgiveness. Impmon accepts and they became a family once again. When Beelzemon has to take up arms against the threat of the D-Reaper, Mako gives him his toy gun and Ai gives him a kiss for good luck. Due to the renewed strength of their bond, Beelzemon is able to transform the toy gun into his Blaster, becoming Beelzemon Blast Mode. By the end of the battle with the D-Reaper, they are given a violet D-Power by a DigiGnome.
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