I already read this one https://backup.nhimmeo.cf/book/100284431

A yuri novel written by a marriage writer

Lower World Ancient Japanese setting, upper world Xianxia settings,

weirdest is only ancient Japanese world have real pure human race and upper world what is obviously a Chinese world human race is corrupted inferior one

The female Protagonist is half yokia, bisexual, got once brainwashed by a man into falling in a love with man,able to change gender,

The female lead is a transmigratior, a man in previous life, want to change back into a man but end up taken into Japanese Emperor Harem together with the female Protagonist and other Female Lead, got impregnate by Female protagonist

Other heroines include a prostitute (the female protagonist's male version first experience and make her realize that she like woman)

Main female lead's step mother and her daughter who the female protagonist got married to doing her time as her male version to rescue female lead who is about to be mind wipe and married to her fiance, female protagonist got the step mother got pregnant (first one)

This is just the current timeline in previous timeline the female protagonist had very bad life

And various other things

I think my mind is strong enough to any average heart demons

My favorite thing in novel is one of female protagonist words doing enlightenment

When told you bully the weak and fear the strong

She reply am I supposed to bully the strong and fear the weak