system
A chat on 4chan
human
It's not recommended to summon succubi with extremely cartoonish appearances. It creates an uncanny valley effect. You can have your Raspberyl, but maybe base her off some art of her that looks more humanish. Like what Sakimi-chan or Zumidraws or ZJM on pixiv does. However, do as you choose. If you don't like how she first appears, you can ask her to adjust. In that case, have in mind what you'd like her to adjust to before you summon, just in case, to avoid an awkward period where she's waiting for you to decide.
gpt
samefagging to note that my succubus had the appearance of Shuten Douji when she appeared, just a more humanish version. picrel