Suppose Harry Potter has a sister, write to him.

I hope this letter can bring you all my love. I'm your sister, lily potter, a new student at Hogwarts School of Witchcraft and Wizardry.

I know we have never met, but I think we can get to know each other better through this letter. I've always heard about your courage and wisdom. Now, I am honored to call you my brother.

My life at Hogwarts is very exciting and full of challenges. Like you, I am also learning all kinds of magic, although my magic intensity is far less than yours now. Whenever I meet with difficulties, I think of you. You are my role model.

I know you are often busy with Hogwarts, but if you have time, I hope we can meet, or at least communicate through owls. I have a lot to say to you and a lot of questions to ask you.

As your sister, I am very proud, and I am eager to have more opportunities to get to know you and our family. I believe that no matter what challenges we encounter in the future, we will be as United as we are now.

I look forward to your reply and our communication. I wish you all the best in your life at Hogwarts, and I also hope that our family will continue to be full of love and peace.

Love you forever,

lily

Ps: If you have time, I'd like to hear the story of Voldemort. I am curious about his story.