The Wayne Family's Lazy Days, But in Reverse Order [Western Crossover]

Hi, I'm Roxie Wayne, daughter of Gotham's richest man. A few days ago, I hit my head and lost my memory. But I'm absolutely certain that even if I've lost my memory, there's no way my fourth little brother could grow into a Dwayne Johnson lookalike in just one week. What on earth is going on!? § Reader's Note: ◎ After transmigrating, she decides to take it easy in this reverse-age setting. ◎ Mostly daily life. If you think it's dragging, run for it. ◎ Almost certainly a short-to-medium-length story. Theme: Sometimes you need to stop and take in the wonders of the world.