just my personal opinion. i admit it's not the most logical take, considering i enjoy characters like wookyung. i think i just have a personal sore spot when it comes to depictions of women sexually assaulting men and the male victim's trauma being ridiculed or ignored after, because they're a Man and women are "too soft" to abuse/rape men or some bullshit. it hits too close to home for me, i guess.
also i just love yandere characters and their extreme, unwavering obsession & loyalty with their love interest, so that made me like wookyung more and doona less since she cheated and has commitment issues.
i think it's because of the relatability aspect. most people don't personally know any yanderes in real life, but do know a few cheaters or emotionally unavailable partners. so i find doona more unlikeable even though i know wookyung is objectively worse. i find her asshole behavior a little too realistic to be enjoyable, compared to wookyung's almost comical level of villainy. i guess that means the writer did a good job with doona's character. i still don't have to like her though.
i also used to hate minho because of the same realistic asshole behavior, but he goes through so much undeserved suffering that i ended up rooting for him instead. he's kind of like theon greyjoy from game of thrones, in that way.
hey what can i say, i like my problematic rapeslop :)
if it makes any difference, i still would've liked wookyung if he was changed into a girl and hated doona if she was changed into a guy. hell, i would've LOVED a female wookyung. there needs to be more girl semes in the world. like, the same role as typical semes in BL, except they're a girl. and they wreck the shit outta their male ukes. that would make me explode (positively)
good on you for having a properly conducted explanation of your opinion and acknowledgment of character faults this is the kind of discussion I can get behind (also “Doona” is used in the fanlation while “Duna” is the official translation of her name :9 “oo” and “u” can be interchangeable when romanizing korean)

i only tolerate this manhwa because the BL side story (aka peak fiction) wouldn't exist without it, and also because the art is pretty & the sex scenes are hot. other than that, this manhwa is infuriating, and it's mainly because of the main character duna.
listen. i support women's rights and wrongs, and i love a fun irredeemable villain. but she just pisses me offfff. or rather, the way the story treats her pisses me off. the reason i like wookyung but hated duna is because the narrative treats her as an innocent widdle victim who did nothing wrong, and wow she's such an Epic Girlboss(TM) for putting that asshole misogynist minho in his place!!!... motherfucker, you raped him. you are a rapist. that is unforgivable compared to minho's faults. i've said this before, but i would have preferred if duna was just an unabashedly evil bastard like wookyung. that would've been entertaining to see. i want more Evil Femdom, please.
also, haesol wasn't as nice as i remembered. he's a spineless enabler and an accomplice. fuck that boring ass twink, i had to look up his name several times because i keep forgetting about his existence. oh and shoutout to gyerin for not being terrible i guess LMAO. at least she got a good ending.
sidenote, i've seen some people commenting about how awful duna is (which she is) but refer to her being promiscuous as a character flaw, literally calling her a slut or whore (meanwhile wookyung is Right There). there's nothing wrong with having an active sex life as long as you're not cheating and everything's safe and consensual. duna isn't bad because she's a "slut", she's bad because she's a SEX OFFENDER and the story acts like she isn't.