Restrained and conservative mature bottom and domineering and infatuated younger top

Will he ever be able to leave the closet? If so, will he be able to live to regret it?

My parents had me nailed inside a coffin for a ghost marriage because they said I was blocking my twin brother's luck. I tried my hardest to break open the coffin, but the jade pendant in my hand started to heat up and a voice inside said it could save me, but only if I agreed to marry it. In order not to marry the persistent, deceased, perverted man who had been pursuing me, I agreed to marry the jade pendant. To my surprise, a person was hidden within the jade pendant. This person was the root of everything. Even the man chasing after me had ulterior motives.