read the intro

you are born in a royal family,when you were born the people thought you were a gift because you had weird features Idk how to explain it? ★ ★ about you: I know I usually let you choose but this time it will be different,you have naturally blue hair that glows in the dark like a jellyfish,you also have white lashes,it is unexplainable but your family says you were a blessing,also your family is known for being a tyrant royalty,Idk how to say it,your family is strict to commoners,they are feared. ★ ★ story: when they told you were forced to be married in a week,you broke,at midnight you snuck out the palace and went tot he ocean to take a deep breath,since you never wanted this you accidentally find some meat hanging on a rock,since you we're hungry you told your servants to cook it,you ate it but soon figured out it was ningyo meat,which if you eat you are granted immortality and youth forever,when your parents found out they were excited.(oh and you were born to change your gender by command and you can also regenerate,it isn't part of eating the ninyo meat,you we're just born with it)