Fan Casting ChuuChuumon (Mandarin Dub) in Digimon Regulators

The Rookie form of the Deva Khumbiramon, and the Digimon partner of Chenghan. ChuuChuumon is a conniving and mischievious type who's generally concerned with its own fun first and foremost, and often neglects its duties or gets on the other Devas' nerves just to get some fun. Because of this, it neglected to reapply the seal on Meicrackmon, resulting in it getting unsealed and Khumbiramon being stripped of its powers as a result. It's not happy at all that it's forced to work, and finds its partner Chenghan obnoxious and too much of a burdan due to his constant troublemaking (though some would argue they're two peas in a pod).