Protagonist Song Dan:
The most miserable start: His parents died because of him, and he has no family or friends.
Damn, he gets kidnapped from the start.
The most sinister golden finger: The golden finger he obtained after narrowly escaping death time and again.
Damn, it wants to take over his body.
The most unreliable golden finger: The first thing this golden finger does after drinking its fill of blood.
Damn, it forcibly assigns him a marriage match from a completely different world.
The most disastrous romance: The women who grew close to him while they were hunting for treasure. He thought one of them would be the heroine.
Damn, turns out she's a supporting character. Not only does their flirtation go nowhere, she treats him as a cultivation vessel and fights him to the death.
The strangest heroine: Badly wounded, he thinks he's found a lifelong friend.
Damn, she's actually the heroine.
The most bizarre experience: Life among humans is too hard, so he switches to the demon race, only to somehow really become a demon.
Damn, and he's a member of the dog clan.
The most tragic ending: He thinks he can live happily ever after with the heroine.
Damn, she kills him.
There are some loopholes in the logic, but the writing is very good and worth reading.