Digimon Universe: App Monsters

Lend me Your Power Rei and Hackmon, Encounter in that Day (1x22)

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As Haru and his friends chase after Mienumon, who stole the seventh and final Seven Code Appmon Chip, Rei and Hackmon set to face Dezipmon, an Appmon they encountered when they first met, and the key for them to reach the Ultimate level.