I Met a Ghost Wife

My name is Zhang Xiaoliang. I'm 19. After breaking up with my younger girlfriend, my life changed dramatically. That same year, my grandfather passed away and left me a letter. In it, he said he'd arranged a marriage for me, a ghost marriage, and told me to go to the cemetery at twenty to find my wife.

(No harem, the protagonist is not invincible, the female lead is invincible, no System, not brainless, not a power fantasy. Readers who might object, please proceed with caution.)