Ruan Meng Niang Zi Shi Sha Shou

Wan Cong Qing, the playful daughter of General Wan, was betrothed to Prince Song Shao Xuan. From being initial enemies to love and understanding, Wan Cong Qing's purpose gradually changes from assassinating the prince to slowly falling in love with him.
(Source: Chinese = Baidu, Douban || Translation = AnastasiaWun at MDL)