i like how this can be interpreted as either the dad being trans or just really good at cosplay.
Why would he be embarrassed? He obviously killed it with that cosplay!
In fact, his costume and makeup were so good that even his own daughter (with "good eyes") couldn't tell it was him.
It's a pirate manga site, what do you expect? I can't link to a specific chapter of a legal copy.
Use Kotatsu on Android or Komikku on Linux as manga readers & downloaders so to not need to deal with porn ads.
Try MangaDex. Not sure if it's because I'm using an ad blocker, but it doesn't show me ads.