Mu Can decided to stay after much deliberation. It seems that Bakar has entered into another slumber, hence entrusting himself to the blond youth before him. From the performance of this blond youth, it appears there is a lack of Alchemy Masters among the Demon Clan, so Mu Can doesn't need to worry about his safety here.
Since safety isn't a concern, Mu Can started to plan how he could gain more benefits here. Now that his greatest reliance, the Reincarnation Pearl, had disappeared, all he could depend on were the new Cultivation Techniques he had acquired. Staying in the Demon World, as long as he could continuously refine elixirs, that would be the most effective way to enhance his abilities.