Her attacks are deadly, her personality and actions are childish, she has also lived for approximately 500 years, and the ego of Remilia is quite large as well. Remilia Scarlet is the matser scarlet devil. She may look around 10 years old because she's short, but when you look at her silhouette, she's pretty large. She sleeps during the daytime in the Scarlet Devil Mansion. At night she takes a walk or hosts a party and has as much fun as she can. After getting tired, she sleeps again. You become most likely to encounter rare things as you start.
According to the events of Embodiment of Scarlet Devil, it states that Remilia was the one who caused the red, thick mist to spread around Gensokyo. And that mist was so strong, it covered the sun, causing it to become cold and dark. The reason she did this is because she would feel comfortable walking outdoors in the daylight. It persisted for a few days, and led people to not have the ability to stay not only the human village, but even their homes. Reimu Hakurei, the shrine maiden of the Hakurei Shrine punished Remilia and things returned to normal. Marisa Kirisame, an ordinary magician set out to see the mistress because she was hoping that Remilia had interesting items to collect (Marisa's the thief). When the Scarlet Devil was defeated, she had to use her parasol if she wanted to walk outside in the day.
Vampires can be surprisingly polite. Especially since they try not to eat the humans that live in Gensokyo. However, because she is childish, whatever you do, you must be careful not to render her in a bad mood. Otherwise, you may be suffering terrifying consequences. You'll have to put up with her selfishness. You might even become half-human hlaf-youkai, based on how Remilia changed in fate.