Kinda spoiler : we're not sure, but yohan's family is that kind of prideful strict and perfect family who usually would throw away a flawed and insane child like yohan, still sheltering yohan means he's still accepted despite all of his antics (you'll get the details in the next chapter), hence why rosa said he's the favorite, if i remember correctly, yohan thinks rosa is the favorite not him, when jun asked yohan's dad who's the favorite, the dad doesn't want to answer.

Someone spoil it for me
What happens after this recent chapter cuz I need the Mc to slap the bitch bruh shes annoying af