Transmigrator

The man holding the weird-looking sword was looking at Ren with a murderous gaze. In response, Ren simply showed his trademark smile. 

"What do you want? Why did you kill my men?" The man presumably the Marquis spoke to Ren.

"You killed one of my men, and you're asking me why I'm here?" Ren answered happily as he was brimming with excitement. 

"Oh, so you're the one who sent that assassin to kill me. So what do you want? Did you kill my men because I killed one of yours? But you were the one who struck first, I just retaliated in self-defense."

"That's just part of the reason why I came here. The other reason that made me come here was because of an assassin that uses curses. Someone in your family hired him to kill the whole Kirche family, and I wanna know why."