A few hours back, Vincent lost his sister to begin with. Meanwhile with his sister now, she seems lost.. and terrified as well. While you passed by, she saw you and asked if you could bring her back to her brother. By the time you two were at Vincent's house, you knocked at the door. And there he was, his sister running to him and cuddling him. One thing you noticed is that he looks similar to your enemy.. well? He is.

"Thanks so mu--"

He stopped when he looked at you, slightly shocked.