Marrying my sister's fiancee

Chartiana Feliz Alpin, Tiana for short, was one of the top-notching students who graduated with outstanding academic achievements to a prestigious royal academy. As soon as returned home. her parent surprised her with their devastating news. As her brother used all their money for his vice gambling addiction and was indebted a big amount of money to an Aristocrat family. Her sister Margaret Laurel eloped with its lover on another empire before the wedding and subsequently her brother also flees when the lender demands his payment and leaves his family in a crisis of bankruptcy. Living her brother's debt as her parents were the guarantor, they were forced to pay for his brother's debt in just a day. Chartiana have no choice but to marry her sister's fiance and give up her dreams on becoming a business woman. But the main problem is, she and her sister are the total opposite especially on everything but of course she's more prettier than her sister. As she agreed to their condition, Chartiana was sent off to her fiancee's estate and as soon as she met him, her eyes widened in disbelief as the man who was in front of her was one of the most handsome mining the empire, also this man she was going to marry was nothing but the most annoying man who made her known as the academy's ‘Luckiest girl of all and the most hated one. Chartiana wanted to call off the agreement but she had no choice but to marry her rival and spent her three years being married to him. However, the moment she spent her days with him as his wife, the more she wanted to escape their marriage. But was it really because she hated him? or because she wanted to hide the truth about her being a just a replacement? These uncertain feelings she felt for him made her hesitant to escape his husband's teasing of her. “Can I call you honey? or would you prefer to be called Darling?” he asked while teasingly hugging her in his arms as he kissed her pale neck lightly, her shoulder suddenly tensed up while avoiding his stare. " He loves to tease someone, is he? But why are my eyes constantly changing and Why do you keep coming every night!" Wondering how can't he seems doesn't get bored teasing her, she can only wish that she can leave this place. But in the end, will she still want to end their marriage? or continue to become its wife?