ひょんなことから (by some strange chance)

It was through a strange twist that I found out the truth — right when I was about to give up on the whole thing.

I met my now-husband over email, and once we'd started dating through some weird twist of fate, before I even knew it, we'd decided to get married within less than a month.

Yesterday, through some strange chance, I happened to see a copy of my father's family register.