I Refuse to Be a Father in a Matriarchal World

After transmigrating to a world where the genders are reversed, Rayne realizes that before he can think about his future, he needs to escape from his yandere guardian.

But then he finally discovers something really bizarre:

"Oh no. I think I'm the protagonist of a hot-blooded manga, a leaving-the-party story, a regret story, and a lifelong-regret story all at once."

What kind of protagonist am I? There's something wrong with this hodgepodge protagonist business!