This is Ømega-Oni's mentor, Top Gyokuto; The Jade Rabbit Yōkai. Top traveled all the way from Japan to Colorado to find the next Oni Warrior. For a while, she hasn't had any luck find a worthy adversary. But that's when she found someone who was worthy of being the next Oni Warrior (Which turned out to be Ben). Funny thing is that Top also became Ben's first friend he ever made (Ben is known for having a glitch in his coding, which caused him to not have as many friends as Beth) Top taught Ben everything he needed to know, the Past Oni Warriors, their techniques and everything needs to know about Combat.