One sentence:
It's just a scumbag who was reborn and turned into a trap.
Previous life version:
Si Jinhan never understood what love was. He only knew that the only person he could trust wholeheartedly was Jiang Shaozin.
Perhaps after Jiang Shaozin's death, Si Jinhan realized that he could care about someone so much...
Real version:
Si Jinhan smiled as he watched Jiang Shaozin walk step by step into the 'trap' he had set.