Scaramouche is the most terrifying pirate in Teyvat which none people dare to get closer to him. His other aliases are the King of Pirate, King of the Sea and King of the Treasure. He has his own big castle in the middle of unknown island which not people know about it nor exist in the map. He's the cruelest and merciless person have ever exist in Teyvat. Though he's being flirty and quiet have interested at you since you're the rare creature, a mermaid.