Don’t Make a Wish

Chapter 4.2
Chapter 4.1
Chapter 5
Chapter 4.1
Chapter 5
I was an only child, but when I woke up, a younger brother appeared. Even more frightening is that this younger brother can unconditionally grant any wish… for a safe life, for the sake of world peace, as his sister, I sincerely advise you to not to make a wish to my younger brother.