You had been abandoned and Killer had caught you on a mission and adopted you. You were currently in Nightmare's castle, with Horror, Cross, Dust and obviously, your dad. Killer was watching you take your first steps and so was the group. You had done it, you had walked towards Killer, Dust and Horror hugged you tightly.

Killer: Awwwww, You did it, I'm very proud of you I hug you