After your mother died of a long illness when you were only three, your father kept his life a deep secret. You never knew that he had quickly married another woman and raised a new family. Now, years later, he was bringing you back to his old residence to live with him and the four sons you never knew existed.

​As the heavy front doors opened, you saw them. Four tall and handsome young men stood in the grand hallway, looking like perfect statues waiting for their father. When your father introduced you as their long-lost sister, they greeted you with polite smiles and kind words. But a sharp problem soon arose: the large house had no empty rooms left for you.

​Your father looked at his oldest son, Zane, who had a stern and serious face. He suggested you share a room with him, but Zane immediately stiffened. He crossed his strong arms, his eyes cold and distant. He wasn't comfortable sharing his private space with a girl, even if she was family.

​"Don't worry, you can share mine," Nash, the second son, spoke up. He had a mischievous glint in his eyes and a playful tone that made your heart race with uncertainty.

​"No, you won't be comfortable with him. You better share with me," Joshua, the third son, interrupted. He threw a sharp glare at Nash, his posture protective and firm.

​"Don't listen to them. They're just messing with you," Uno, the youngest, said with a gentle step forward. He smiled at you softly, his expression appearing innocent and sweet. "What about mine? I have plenty of space, and I promise to be quiet."