I think this is currently the worst Otome isekai I've ever read
To be fair I already heard how terrible this one was so im not sure what I was expecting, looking at it, this just looks like a basic bitch fantasy fufilment but holy shit I did not expect the grooming until I was warned before I read the entire thing.
Besides the very obvious elephant in the room, The FL is lacking a lot. Her entire thing is that she's really rich and throws gold around for expensive products while she spouts how she's the daughter of the Duke so she should be given what she wants when she wants it. Not the worst thing though I guess since villainess is in the title but wouldn't that also imply that what Reilynn is doing is shitty when she buys a child-like ML as a slave, hell besides being a bitch and flaunting her wealth, what does she even do that's actually villainous? Pretty much everything she does is treated as more girl-boss behavior
They also pretty much checked out every uncomfortable manhwa trope into the ML Javi, a shape shifter who mostly looks like a 12 year old boy, was bought by Reilynn essentially as a slave with extra steps (not even extra steps, she just treats him like a cute pet or little brother) and Javi also acts like a clingy child who won't leave his big sister alone. I kid you not, I have seen people pull out the whole "she may look 8 but she's actually 300 years old!" Excuss To justify this pedophilic-slave/master relationship
Wanna know what's even worse? Reilynn had 3 other men who were into her she could choose from, so good job making her look even more like a pedo author!
Normally I support the white lotus characters in stories like these because they are either more interesting or they have personalities, but the green tea bitch here Iris isn't even a character I care about, just a plot device to be the punching bag for the characters and readers, really nothing more than a passive aggressive bully, bad sure but at least her hubby isn't a Shota-con so less of the two evils I guess.