Sister, Don't Block My Way, Brother Is Mine

Wen Yi Yi was manipulated by her stepmother since childhood and pretended to be mentally unstable to protect herself, bound by a childhood marriage pact with Ling Yue. While navigating the difficulties posed by her stepmother and older sister, she deepens her feelings for Ling Yue amidst misunderstandings and protection, unexpectedly finding her biological father from a hidden family. After facing the engagement crisis and a revenge comeback, Ling Yue sacrifices his family business for her, and the two finally overcome their obstacles. Can this love spanning conspiracy and true identity eventually lead to a happy ending?