Tame a Mad Dog

(Gentle and beautiful sister vs. Crazy puppy, 4 years age difference) (The female protagonist is a photographer, the male protagonist is the lead singer of a band, nicknamed Mad Dog. In front of others, he is a cold and cold brother who is ruthless and doesn't talk much. Behind the scenes, he sticks to his sister's little dog that is crying for a hug. He is a true master of tea art) nine years ago Luo Jiahui didn't expect that she would be attracted to a beautiful little boy just by chance. Not only is she beautiful, but she also has a good personality. She calls her sister obediently and melts her heart. Like a fluffy puppy. What? Is this pretty puppy actually a mad dog? Luo Jiahui: You fart, he is obviously so well-behaved and cute. What? He is notorious in school for bullying his classmates every day? Luo Jiahui: You're talking nonsense. He's so timid that others can bully him. Nine years later, Luo Jiahui looked at the man in front of her who was getting more and more dazzling, but completely different from her memory, and stepped back step by step. "Don't come over here, I'll scream." Cheng Yukun: Just scream, I just like to hear you scream. Luo Jiahui: You have gone too far! Cheng Yukun: Really? I have something even more outrageous. After some time passed. Someone complained to Luo Jiahui: Can't you take care of him? Luo Jiahui: Cheng Yukun! Do you still want to do it? Cheng Yukun: If you want to do it, just let me do it? Luo Jiahui's eyes widened, and Cheng Yukun knelt down obediently. "Sister, I was wrong~"