A Succubus's Journey of Bravery

[This book contains elements such as gender change, age change, etc. Please do not read if you mind.] [Non-travel + no system + imaginary different world] Lilith, who considers herself a dragon, was raised by humans since she was a child. Like all children in the Second United Kingdom of Humanity, she has the dream of becoming a hero. But one day when she discovers her identity as a succubus, the gears of fate begin to turn... The struggle within the kingdom and the invasion of the devil from outside. Human race or demon race, how should she choose? The brave man who attracts all the attention, the ordinary and comfortable waiter, what should she become? What is the goddess of light, the way of heaven, the thing that claims to be omnipotent?