Recommendations Novel Like Side Character Transmigrations: The Final Boss is No Joke!

I want a novel where the female lead and the male lead have their positions swapped-the female with a ML personality, more specifically. And with some mature content, if possible. Any recommendations?

 

The Female General’s Little Childhood Sweetheart. I mean, they do switch roles, right? Lmao.

 

Thanks for the recommendation, I'm reading it... but there aren't many chapters so I finished reading it. I'm reading other recommendations from that novel now though! Thanks again!