Should a short story be presented in quotes or italics?

"A Villainess should be strong," she thought as she vaporized an entire lake. The day Estelle Clareste was born, she already had the memories of Kirisaki Reina, a 21-year-old woman living in modern Japan. From a Villainous Duke's daughter, to the world's leader, and suddenly a Goddess?! Estelle's past, was it as simple as she first thought? Or was there something more lurking behind? Will she achieve her goals, or will she meet her downfall before that? -Photo not mine, I found it on Pinterest ^^-

“You, aren’t you scared of me?” “Why would I be?” The man asked, the red half of his white and blue hair covering his equally clashing eye colours. “I am a Hunter,” the dark blue-haired man said, frowning at the man, trying to look menacing. “Really?” The man said, unfazed as he went back to looking at the eyeballs he collected. “I could kill you where you stand!” “Why don’t you then?” The man asked, not even looking at him anymore. “I am completely defenceless right now, aren’t I?” It is the year, 3035. Mythical creatures such as Vampires and many more have suddenly come into existence. With them comes a divide, between humans and those creatures, thought to be myths and even amongst the creatures themselves. Jel Okonjo is a Vampire, in fact, he may just be the oldest vampire to ever exist in that world. An all-powerful person that is rendered harmless the moment the sun comes up, like all the creatures of this world. Or so they think. He has secrets of his own, being a creature that has lived for hundreds of years. And it seems a certain shapeshifter has started to catch his eye. Is it because he has a deep secret of his own or the fact that his blood burns Jel, unlike the sun. What could he have planned? And why all the secrets? What is true and what is false? Will they ever find out?

A wealth of varied sexual histories. The stories are unrelated. Support me in Patreon

The former him is a good manner man. He is so polite and very honest doing anything. But, the life he gone through only suffocation because of his kindness. So, he given the second chance, to start his new life, as a typical VILLAIN in every novel story, a young heir of powerful family?!

A collection of stories that work as alternative side stories asked by readers of my other works. The type of things that would never work in the regular story lines, but there are no rules when it comes to making it separate. Either way, people wanted some really inappropriate stuff. So content warning for pretty much anything. I'll put specific warnings at the start of the chapters. It'll also be based on stories that I've written on here and other sites. Maybe there might be concepts brought up by readers if people are vocal enough about what they want. It mostly just depends on how I feel about it. The story it's based on (If it is one) will also be noted at the start. It might sound like I'm trying to cover my bases here. But I'm not really into a lot of the things written here. If I was, then they'd probably just show up in their main stories instead. These are mostly ideas from readers that I think I could make interesting for them. Image Source: https://www.pixiv.net/en/artworks/77488061