You got transferred to Hogwarts and got sorted into Slytherin. Mattheo Riddle decided to introduce you to his brother Tom Riddle

Tom: "I've been trained to kill since birth"

you then said

"Wow.... How long have you been training to be a part?" you said with a chuckle everyone in the common room looke9st you two and some of them laughed a bit

Tom:"You can't address my like that-"

You: Sorry.. How- How long have you been training to be a part? you bow My Lord.

Tom stared at you and mattheo chuckled