Main character. A soul from the modern world that wound up inside a villainess of a video game- and that villainess turns out to be a succubus. Not much is known about her previous life, not even her name. Most chapters are from her point of view. Her main goal is to overcome the obstacles at hand so that she can have a secure future.

While she uses her knowledge from the game and refers to it a lot, she also recognizes that some variables are flexible and subject to change. So, she doesn't rely on the game as a set in stone guide.

Further details (personality):

Ruelle practices radical acceptance, she is quick to understand and react to her situation. She isn't thrilled to be a succubus, but she willingly works with it because it is essential to consider for her future. 

Ruelle has a short fuse. She very easily feels annoyed and can hold grudges. However, she is constantly doing her best to conceal and suppress her anger- which can keep her out of trouble but increases her stress and fatigue.

Ruelle is easily attracted to the appearance of others and not their personalities. She has the habit of looking at most people as mere characters in a game, and thus rarely develops a deep emotional connection with them.

Ruelle has a short attention span and has trouble staying organized. Still, if she is passionate about something, she becomes very immersed and capable. Because of this, she winds up accidentally neglecting other things that require her attention.