Jaken

"I Very Sure It Has Lucky Term Rei"
Jaken is most noble follower in the Rei Yokai Clan but so He has in state of mind getting a little bit ago for such incidents on level disrespect from great hero like Manny
And so He was Aogaeru rival from the Nura Clan, but Jaken witnessed Time Specter prison away by the Senseis over 3,008 years ago used to be in Time Specter's Evil Hyakki Yako to banish all the good Yokais to the Human Realm so that a young Demacian man the 22 years old Manny himself could free Whisper from the Machine and been processed with Yokai Watch which definitely angered Jaken on Manny is making friends with the Yokais by giving their medals