Harry Potter: The Chosen One Is a Scheming Little Puppy

【Fanfiction + Strong Female Lead + Changing the Wizarding World + Harry Potter has a one-sided crush】 Istalia Merlin, the 1,800th-generation heir to the Merlin family, is bound to the White Wizard System and cares only about improving her abilities and becoming stronger. First year: Harry Potter is protecting the Philosopher's Stone. Istalia saves a unicorn on the brink of death. She earns a Special Contribution Award and wins the House Cup for Slytherin. Harry Potter has had his eye on Istalia ever since he boarded the train to Hogwarts. There is no one more dazzling or beautiful than that enchanting witch. She is the first to stir his heart, and she will surely be the one by his side in the future. “What happened to Istalia?” “She's fine. What do you have there, brown sugar ginger tea?” Hermione stared at Harry in shock. How did he know Istalia was on her period? Warning: Harry Potter has a strong dark, obsessive yandere vibe. His possessiveness toward Istalia grows stronger as the story goes on, though it might not be obvious at first since he's still a child. He already has a very high affection level and will secretly sabotage any interaction between Istalia and other boys. He's also very jealous. Harry Potter is sharp-tongued and close to his original characterization, the Harry who struggles not to laugh as he says Dudley looks like a pig in a suit. This breaks up canon couples. If that bothers you, please stay away. Let's not make each other miserable!!