Substitute Marriage? I'm Still Thriving as a General's Wife

[Old saying + substitute marriage + marriage first, love later + suspense + mutual redemption] Jiang Xingwan got married for his sister and became the bride of General Lin Bieyu. On their wedding night, she was almost poisoned but luckily escaped. She vowed to find out the truth, but found that Lin Bieyu's Bai Yueguang had mysteriously drowned in Jiang Mansion! He also learned that even their marriage was a plot carefully planned by Lin Bieyu, and that he only married her to investigate the case. Jiang Xingwan offered to assist in the investigation in exchange for freedom. The two worked together to find out the truth, but she gradually fell in love with Lin Bieyu during the investigation. They passed many tests, from mutual suspicion to mutual trust, and finally saw their hearts clearly and found their true destination.