The Mieruko Chan manga has ended. The story reached its natural conclusion, and fans have been able to enjoy the complete narrative. Although some might wish for more, the ending was well-structured and satisfying.
It could be that the style or theme of Mieruko Chan manga doesn't appeal to everyone. Maybe it's not in line with personal preferences or expectations.
Well, it depends on how much his dad knows about Cat Noir. If he doesn't know much, he might be a bit confused at first. He could ask Adrien what exactly a Cat Noir fanfic is all about. Maybe he'll be dismissive if he thinks it's just some silly fictional thing that distracts Adrien from more 'important' matters. But on the other hand, if he realizes it makes Adrien happy, he might be more accepting in the long run.