Wukong had grown soft over the centuries, where once he had been a force of nature, near unstoppable by any that crossed him, he was now nothing more than a glorified legend. A pretty face to be slapped on any number of things mortals found interesting.

MK, who wasn't disillusioned by Wukong’s fame, seemed to exacerbate that softness further with the kid treating his teacher like another parent while the golden Monkie treated his student as if he were his own.

That thought left a funny feeling in the demons chest, a feeling he wasn't interested in exploring right now, especially with his rival and the Monkie kid sleeping soundly on Wukong’s cloud under the shade of a fruit tree, the same fruit tree Macaque himself was reclined in eating said fruit.

It would be easy to land a killing blow, perhaps not on Wukong himself but certainly the kid and the little monkey nestled under his chin but it would be a pointless thing to do.

It also left a horrible feeling in his gut just thinking about doing that to MK, this was another thing he tried to avoid thinking about too much.

Ultimately the kid had been a means to an end, he had never planned to kill him and it had been in the heat of the moment while trying to draw out Wukong’s true power that he had decided to hurt him by hurting his kid.

A part of him (more specifically the part of him that had grown to like the kids attention and easy affection) felt something akin to guilt about that, did he regret using the kid to get Sun Wukong’s power and hurt the sage? The spiteful part of him said no, but what he did regret was losing the chance to get the kids admiration again.