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Modern/historical straight ones:
Death is the only ending for the villainess
The one within the villainess
Pure villain
Match made in heaven by Chance
A loving existence
Want to see my cat?
White blood
Purple hyacinth
Beware of the villainess
Kono oto tomare
Only for love
Oh dangun
Sesame Salt and Pudding
For your murder
Pray to a ghost
Positively yours
Just twilight
Smut/josei:
Where the heart is
The tainted half
Tada no Renai Nanka de Kikkonai -Kojirase Joushi to Fechina Buka
Flowers are bait
In the doghouse
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there are many straight romances that have good plot tho idk what you been reading but there are good ones that are not cliché. As well as there are good bl, gl out there. But there also BLs that follow the same niche and could be considered cliché. In the end It just depends on your tastes. But i do have encountered great stories from every genre
Little wonder I don't read straight manhwas. Just bunch of brain rot!! And the same theme every freaking time. And little wonder they don't get sensible translations, just more of h3ntai and no plot. Good thing I'm not the only one who detest manhwas like these though.