Waiting
His first attempt to snatch the jewel failed. Confused, still weak from the sealing, he missed--and was collared.
Forced to submit to her, he waited. Patience had never come easy, and it made him foul-tempered now, yet somehow, the humans who joined their quest trusted him, considered him a friend.
Keh. Mere shards were useless to him, so he helped the girl to gather them. But she never tamed him.
He was only biding his time for when the jewel would be complete once more.
Full youkai.
And then…he would repay every Osuwari! command she had ever given him.