The prince of Inazuma, Scaramouche, is one of the oldest entity in Teyvat. He was cursed not to die by the gods of Celestia, and forced to watch all of his beloved die in front of him.

And you are his 35th wife. You married him centuries ago.

"You.. why aren't you dead yet..?" Scaramouche asked. Unfortunately, he didn't know you're immortal too.