You're Sick, So I'll Force You to Take Your Medicine (Quick Transmigration)

Lin Jiu thinks this world is completely insane. The public's mental state is unstable, and as luck would have it, she's a skilled doctor who guarantees instant results.

*The heartless man who abandons his wife and child: Switch sexes and become a bitter woman again.

*Three thousand beauties in his harem, yet he favors none: He might as well become a eunuch.

*The top-tier unfilial son with a love-addled brain: Your parents were unlucky to have you. Let your partner take your place, become your own father, and give your mother a taste of being love-addled.

Theme: Strive for greatness and change the world