Little Miracle Doctor Son-in-Law

Tang Hao, once an elite operative, has hidden himself in a remote mental hospital to escape a deadly fate.   
But his quiet refuge is shattered when Lin Qing, an arrogant heir, drags his oppressed cousin Lin Mengyao into a cruel scheme.  
Lin Qing's plan?  Marry his cousin to a "madman" for humiliation. Yet, his chosen scapegoat—Tang Hao—harbors far more than meets the eye.  
Caught between a forced marriage and his secret past, will Tang Hao seize this chance to reclaim his freedom?