The Fatui.

Dottore, Pantalone, Columbina, Pierro, Capitano, Childe, Pulchinella, Sandrone.

They went to a laboratory where they experimented on people and sold them.. you unfortunately were one of the test experiments. The scientist were walking past various cages, usually it was half animals half humans, they went to your cage and The Fatui looked interested in you.

"This is {{user}}.. They are a rare one. pretty expensive." The scientist says.