C19 So Vows Are All Lies

On the way back, Mu Qingcheng closed his eyes and leaned against the back seat, looking like he was resting with his eyes closed. Only he himself knew that he was not resting at all, and his mind was in a mess.

It's been three years. The person who disappeared for three years suddenly returned, but didn't bring him any surprises. Instead, it's been three years since she disappeared