[Harry Potter] Dudley's Sickly Little Sister

Harry Potter's life took two major turns. One came when he was eleven and found out he was a wizard. The other came when he was eight, when his cousin Delica reached out her hand to him. His aunt's family treated him badly, but the person Harry feared most was still his frail, sickly cousin, even though she had never bullied him and only watched coldly from the sidelines. Once, a little boy made fun of Delica. The next day, he broke his leg. Another boy, the son of a senior official, threw pebbles at her. The next day, Delica came to visit with homemade cookies, and after that, the boy avoided her every day. But this was the very cousin who came to his side when he was eight. "I'll protect you. You have to listen to me." To this day, Harry doesn't know how he found the courage to take her hand. Content warning: Romance is secondary; the plot comes first. The heroine is good at pretending, and Harry is on her side. (The author writes according to their mood, and even they don't know what kind of story this is until the end.) Written for love. If it's not your thing, don't read it. Leave lots of comments and you'll summon the adorable (lazy) author. Theme: Be self-reliant and strong