It's Hard to Love Two People Who Are Destined to Love Each Other

The call of fate made her see the ice hanging coffin in the mountains. Inside, a man in armor was lying half-lying. In his arms was a beautiful woman in a fiery red wedding dress. The woman's soft white hair was gently placed on her slightly swollen belly, but her pale face told Xiao Wan that they were indeed dead. Is it the sin of the previous life or the unresolved love?